Answer:
CExplanation:
An organelle is structure in a cel that performs a specific task or job.
Answer:
I believe the answer is C: an organelle is structure in a cell that performs a specific task
What do black holes look like ?
Astronomy class.
Text 8.7 Using the virial equation of state for hydrogen at 298 K given in problem 7 (text 8.6), calculate a. The fugacity of hydrogen at 500 atm and 298 K b. The pressure at which they fugacity is twice the pressure c. The change in Gibbs free energy caused by a compression of 1 mole of hydrogen from 1 to 500 atm. What is the magnitude of the contribution to (c) caused by the non ideality of hydrogen
Answer:
a). P = 688 atm
b). P = 1083.04 atm
c).Δ G = 16.188 J/mol
Explanation:
a). Fugacity 'f' can be calculated from the following equations :
[tex]$\ln \frac{f}{P}=\int^P_0\left(\frac{Z-1}{P}\right) dP$[/tex]
where, P = pressure , Z = compressibility
Now, the virial equation is :
[tex]$PV=R(1+6.4\times 10^{-4} P)$[/tex] ........(1)
Also, PV=ZRT for real gases .......(2)
∴ [tex]$ZRT=RT(1+6.4\times 10^{-4} P)$[/tex]
[tex]$Z=1+6.4\times 10^{-4} P$[/tex]
So from the fugacity equation ,
[tex]$\ln \frac{f}{P}=\int^P_0\left(\frac{1+6.4\times 10^{-4}P-1}{P}\right) dP$[/tex]
[tex]$\ln \frac{f}{P}=\int^P_0\left(\frac{6.4\times 10^{-4}P}{P}\right) dP$[/tex]
[tex]$\ln \frac{f}{P} = 6.4 \times 10^{-4} P$[/tex]
[tex]$f=Pe^{6.4 \times 10^{-4} P}$[/tex]
Putting the value of P = 500 atm in the above equation, we get,
f = 688 atm
b). Given f = 2P
[tex]$2P=PE^{6.4 \times 10^{-4}P}$[/tex]
[tex]$2=E^{6.4 \times 10^{-4}P}$[/tex]
[tex]$\ln 2 = 6.4 \times 10^{-4}P$[/tex]
∴ P = 1083.04 atm
c). dG = Vdp -S dt at constant temperature, dT = 0
Therefore, dG = V dp
[tex]$\int^{G_2}_{G_1}dG =\int^{P_2}_{P_1}V dp $[/tex]
[tex]$=\int^{P_2}_{P_1}\frac{RT}{P}\left(1+6.4 \times 10^{-4}P\right) dP$[/tex]
[tex]$=\int^{P_2}_{P_1}RT\frac{dp}{P}+\int^{P_2}_{P_1}RT6.4 \times 10^{-4} dP$[/tex]
[tex]$\Delta G=R[\ln\frac{P_2}{P_1}+6.4 \times 10^{-4}(P_2-P_1)]$[/tex]
[tex]$\Delta G=8.314\times 298[\ln\frac{500}{1}+6.4 \times 10^{-4}(500-1)]$[/tex]
Δ G = 16.188 J/mol
Which best describes the benefit of fiber in the diet
Answer:
Assist in the movement of food and waste through the digestive system
When a hydrochloric acid solution is combined with
a potassium hydroxide solution, an acid-base
reaction occurs. Write a balanced molecular equation for this reaction
Answer:
HCl(aq) + KOH(aq --> KCl(aq) + H₂O(l)
Explanation:
Why does light from the infrared lamp
warm the mirror when light from the desk lamp does not?
Answer:
Because the infrared lamp gives off a type of light that the desk lamp does not, and the mirror can only take in the energy from the infrared light.
Explanation:
Is this statement true or false?
Living things are classified by shared characteristics.
Answer:
True!
Explanation:
Living things are classified by the characteristics they have in common. All living organisms are classified within the organization based on extremely fundamental, shared characteristics.
Prepare methoxyethane by Williamson's
synthesis method. What happens when methoxyethane is
treated with excess HI?
Look at Periodic Table. Which
element has 7 valence
electrons and is in period 3?
A. Fluorine
B. Sulfur
C. Chlorine
D. Bromine
Scientists have known for decades that humans were changing the global climate, but CO2 levels continue to rise every year. Why is it so difficult to reduce CO2 emissions? And what are the most promising solutions?
Answer:
See explanation
Explanation:
CO2 is often released by the combustion of fossil fuels. Fossil fuels are quite common sources of energy in our world today.
A lot power plants, vehicles, etc rely on energy produced as a result of the combustion of fossil fuels yielding carbon dioxide.
Hence, irrespective of the fact that CO2 leads to global warming but Nigeria is still ranked one of the greatest emitters of CO2.
The menace of rising CO2 leves can only be checked by stakeholders in the energy sector coming together to exploit renewable energy as a regular source of energy.
what is the volume, in liters, of 5.500 mol of C3H3 gas at STP
Answer:
123.2 Liters.
Explanation:
At STP (T = 273K & P = 1atm), one mol of any gas will occupy 22.4 liters.
With the above information in mind, we can calculate how many liters would 5.500 mol of gas occupy:
5.500 mol * 22.4 L / mol = 123.2 L
So 5.500 moles of C₃H₃ would have a volume of 123.2 liters at STP.
Which compound contains ionic bonds?
1.
N20
2.
Na20
3.
СО
4.
CO2
What is the hydrogen ion concentration in molarity if the hydroxide ion concentration is 7.609 10-13 ?
[H+][OH-] = 10-14
pH = -log[H+]
[H] = 10pH
Answer: The hydrogen ion concentration in molarity is 0.013
Explanation:
pH or pOH is the measure of acidity or alkalinity of a solution.
pOH is calculated by taking negative logarithm of hydroxide ion concentration and pH is calculated by taking negative logarithm of hydrogen ion concentration
Putting in the values:
[tex]pOH=-\log[7.609\times 10^{-13}][/tex]
[tex]pOH=12.1[/tex]
Now , [tex]pH+pOH=14[/tex]
[tex]pH=14-12.1=1.9[/tex]
[tex]pH=-\log [H^+][/tex]
[tex][H^+]=0.013M[/tex]
The hydrogen ion concentration in molarity is 0.013
Substance in which state of matter have most space between particles
Answer:
to answer your question "which state of matter have most space between particles"
gas is your best answer
Explanation:
when in gas form..particles gain energy and move further apart
for solids particles are fixed (stays in one spot) and vibrates and for liquids particles gain energy but doesn't have enough space to move around freely..so gas is you best answer
I need help with chemistry :(
Answer:
How may we help kind sir
Explanation:
and if this was for points thanks
Heat of vaporization is the amount of heat required to
A. Evaporate a solid.
B. Evaporate a liquid.
C. Melt a solid.
D. Condense a vapor.
Heat of vaporization is the amount of heat required to melt a solid. Therefore option C is correct.
What is heat of vaporization ?
The amount of energy required to turn a portion of a liquid material into a gas is known as the enthalpy of vaporization, commonly referred to as the heat of vaporization or heat of evaporation. The pressure at which the transition occurs affects the enthalpy of vaporization.
The amount of energy required for one gram of a liquid to evaporate without a change in pressure is known as the heat of vaporization. As the solid or liquid transitions into a less dense state of matter, these energies are required to disperse the intermolecular forces keeping it together.
vaporization is the process by which a material is transformed from its liquid or solid state into its gaseous state. Boiling is the term for the vaporization process when circumstances permit the creation of vapour bubbles within a liquid.
Thus, option C is correct.
To learn more about heat of vaporization follow the link below;
https://brainly.com/question/9967928
#SPJ2
The amount of heat needed to cause a liquid to evaporate is known as the heat of vaporization. So, option B is right.
When a liquid is heated, the molecules at the surface of the liquid gain enough energy to escape from the liquid and become a gas. This process is called evaporation.
The heat of vaporization is the amount of heat that is required to vaporize one gram of a liquid at a constant temperature.
The heat of vaporization is different for different liquids. For example, it takes 2260 joules of heat to vaporize one gram of water at 100 degrees Celsius.
The heat of vaporization is a measure of the strength of the intermolecular forces in a liquid. The stronger the intermolecular forces, the more heat is required to vaporize the liquid.
Therefore, the answer is B, that the heat of vaporization is the amount of heat required to evaporate a liquid.
Learn more about vaporization here;
https://brainly.com/question/30078883
#SPJ6
Which statement correctly explains how objects within our galaxy are organized?
A:The moon- earth system is found within the Sun, which is located in the Milky Way.
B:The moon-earth system, the Sun and Jupiter are a part of a solar system found in the Milky Way, which is located within another galaxy.
C: The Earth and other galaxies are found in our Solar System which is found in the Milky Way.
D: The moon-earth system, the Sun, and Jupiter are a part of a solar system found in the Milky Way.
HELP ME PLS 20 POINTS
Answer:
1- Se 2-Na 3- I guess Si as well 4-Ar 5-O
Explanation:
Ionization energy increases as we go right in periodIonization energy increases as we go upwards in groupsAtomic radius increases as we go downwards in groupsAtomic radius increases as we go left in periodsAtomic radius decreases as we go right in periods so when atoms loses electron or more the smaller its radius becomesDraw the structure of the product formed when the given compound is heated in aqueous base. The formula for the product is C8H12O. The starting material is a 6 carbon chain where carbon 1 is an aldehyde, carbon 2 has two methyl substituents and carbon 4 is double bonded to an oxygen. THis reacts with N a O H, water and heat.
Answer:
Please find the graph file in the attachment file.
Explanation:
What is the difference between bonds holding together atoms and forces between molecules?
Written Answer: Covalent bonds hold atoms together in molecules and polyatomic ions where as intermolecular forces hold molecules together in a liquid or solid. Intermolecular forces are generally much weaker than covalent bonds.
Explanation/Evidence: "In contrast to intramolecular forces, such as the covalent bonds that hold atoms together in molecules and polyatomic ions, intermolecular forces hold molecules together in a liquid or solid. Intermolecular forces are generally much weaker than covalent bonds."
How many moles of Al will be consumed when 0.400 mol of Al2O3 are produced in
the following equation?
4A1+302 -> 2A1203
A)
0.200 mol
B) 0.400 mol
C) 0.800 mol
D) 0.600 mol
Answer:
C) 0.800 mol
Explanation:
4Al + 3O₂ → 2Al₂O₃In order to convert from moles of Al₂O₃ into moles of Al, we'll need to use the stoichiometric coefficients, using a conversion factor that has Al₂O₃ moles in the denominator and Al moles in the numerator:
0.400 mol Al₂O₃ * [tex]\frac{4molAl}{2molAl_2O_3}[/tex] = 0.800 mol AlSo the correct answer is option C).
Assignment
Explain why it is not advisable to wear
black silky cloth in the sun
Answer:
It is not water absorbant and also the colour black, due to it's dark nature makes the person wearing the cloth feel hot. Unlike cotton, silk is not at all water absorbant as it does not absord any sweat produced in the wearers body
How many moles of kclo3 are required to produce 14.3 moles of kcl?
Which characteristic is a property of molecular
substances?
A. good heat conductivity
B. good electrical conductivity
C. low melting point
D. high melting point
Answer:
The correct answer is : C.
Explanation:
The characteristics of a property of molecular substances is low melting point.
Bronze is a(n)
A. Alloy
B. Pure substance.
C. Element.
D. Compound.
Answer:....
Explanation:...
What cell tissue helps carry messages? :
options:
muscular
nervous
connective
Answer:
Nervous
Explanation:
Nervous tissue is composed of two main cell types: neurons and glial cells. Neurons transmit nerve messages.
BRAINLIEST WILL BE GIVEN TO BEST ANSWERED!
What is the best explanation for why a magnet is different from a regular piece of metal?
A magnet has more electrons
The magnetic domains in a magnet are lined up with each other
Magnets are made of iron
A magnet has an electric field
Answer:
the second one
Explanation:
metal doesn't act like a magnet because the domains don't have a preferred direction of alignment. Magnets are all aligned in a specific direction.
What is the formula for the sulfate ion?
What is the formula for the sulfite ion?
What is the formula for the hydrogen sulfate ion?
Sulfate - SO4^-2
Sulfite - SO3^-2
Hydrogen Sulfate - HSO4-
Cl- and Ca2+
What is the same and what is
different for these two ions? Be specific and include numbers of any important
subatomic particles.
differences
Cl loses 1 electrons to become stableCa2 gains one electrons to become stableWhat effect does
hybridization have on boods,
The effective molar mass of ashes has units of grams of ashes per mole of base provided. The mass of the ashes in the experiment is given, 20.4 g. The rest of the work involves determining the amount of base provided, in moles. We will first determine the moles of base used in the titration. What volume of acid was used in the experiment
Answer:
molar mass of unknown monoprotic acid = 114.1 g / mole.
Explanation:
Note: This question is incomplete and lacks necessary data to solve for the required calculation. However, I have similar question on the internet and seen the question completely and will be using that data to solve for this question in order to solve required calculation. Besides that, complete question asks us to solve for molar mass of the acid used.
Note: I have attached the screenshot of the complete question, please have a look on it in the attachment below.
Calculation:
Volume = 34.81mL
34.81 mL of 0.4346 M potassium hydroxide
= 0.03481 L * 0.4346 mole / L
= 0.01513 mole.
Balance equation:
HA + KOH ----> KA + H2O
As we know from the question,
one mole HA neutralize with 1 mole KOH.
mole of unknown monoprotic acid = 0.01513 mole.
And we know that the formula for mole is:
mole = mass / molar mass
Making molar mass as the subject:
Molar mass = mass / mole
Molar mass = 1.726 g / 0.01513 mole
Molar mass = 114.1 g / mole.
So,
Molar mass of unknown monoprotic acid = 114.1 g / mole.