1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
aleksley [76]
3 years ago
11

At 25 ∘C , the equilibrium partial pressures for the reaction were found to be PA=5.16 bar, PB=5.04 bar, PC=4.11 bar, and PD=4.8

5 bar . A(g)+2B(g)↽−−⇀4C(g)+D(g) What is the standard change in Gibbs free energy of this reaction at 25 ∘C ? Δ????∘rxn= kJmol
Chemistry
1 answer:
erastova [34]3 years ago
3 0

Answer: 5.85kJ/Kmol.

Explanation:

The balanced equilibrium reaction is

A(g)+2B(g)\rightleftharpoons 4C(g)+D(g)

The expression for equilibrium reaction will be,

K_p=\frac{[p_{D}]\times [p_{C}]}^4{[p_{B}]^2\times [p_{A}]}

Now put all the given values in this expression, we get the concentration of methane.

K_p=\frac{(4.85)\times [(4.11)^4}{(5.04)^2\times (5.16)}

K_p=10.6

Relation of standard change in Gibbs free energy and equilibrium constant is given by:

\Delta G^o=-2.303\times RT\times \log K_c

where,

R = universal gas constant = 8.314 J/K/mole

T = temperature = 25^0C=(25+273)K=298 K

K_c = equilibrium constant = 10.6

\Delta G^o=-2.303\times 8.314\times 298\times \log (10.6)

\Delta G^o=5850.23J/Kmol

\Delta G^o=5.85kJ/Kmol

Thus standard change in Gibbs free energy of this reaction is 5.85kJ/Kmol.

You might be interested in
Examine the nuclear re
Molodets [167]

Answer:

A new compound is formed

8 0
4 years ago
Calculate the mass in grams of calcium carbonate present in a 50.00 mL sample of an aqueous calcium carbonate standard, assuming
Assoli18 [71]
The units of ppm means parts per million. Also, It is equivalent to milligrams per liter. It is one way of expressing concentration of a substance. It u<span>sually used to describe the concentration of something in water or soil. We calculate the mass of CaCO3 as follows:

Mass = 75 mg/L (.050 L) = <span>3.75 mg CaCO3</span></span>
7 0
3 years ago
How many molecules of N2O gas are in 250 L at STP?
Fittoniya [83]

Answer:

I have no idea all I know is poop.

Explanation:

Because I said so

4 0
2 years ago
What is the pH of a solution that contains 0.003 M HBr?*<br> O 1.0<br> O 2.5<br> O 5.8<br> O 11.5
maxonik [38]

Answer:

pH = 2.5

Explanation:

Given data:

Concentration of HBr = 0.003 M

pH of solution = ?

Solution:

Formula:

pH = -log[H⁺]

by putting values,

pH = -log [ 0.003]

pH = 2.5

5 0
3 years ago
True or false heat always flows from a substance at a lower temperature to a substance at a higher temperature
hjlf
The statement is false is it the opposite
5 0
3 years ago
Other questions:
  • If an atom has sp3d2 hybridization in a molecule:
    6·2 answers
  • What type of energy is needed to get a reaction started?
    8·1 answer
  • When an electron is added to a neutral atom energy is?
    9·2 answers
  • Suppose you dissolve 0.1 moles of 1-aminobutane (NH2-CH2-CH2-CH2-CH3) in 1.0 liter of water. a. What are all of the molecules an
    7·1 answer
  • Four properties of water are listed. It reacts with halogens to form oxygen gas as one of the products. It is transparent and ta
    15·1 answer
  • The reaction N2 + H2 —-&gt; NH3, if 2.00 grams of hydrogen reacts: how many grams of ammonia are
    7·1 answer
  • Two solids are mixed in a flask and stirred. After a few minutes, the flask becomes cold.
    12·2 answers
  • How many moles of water are produced in the complete combustion of 2.5 L of methanol (CH3OH) at STP?
    8·1 answer
  • What are the correct coefficients when this equation is balanced?
    11·1 answer
  • Name three active volcanoes
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!