Purchase Solution

Finding Equilibrium Constant and Delta G

Not what you're looking for?

Ask Custom Question

Part 1:
Ammonia can be produced by the reaction of hydrogen gas and nitrogen gas, as shown below:

N2(g) + 3H2(g) → 2NH3(g)

Given that the standard free energy of formation (∆Gof) of NH3 (g) is -111 kJ/mol at 335 K, calculate the equilibrium constant, K, at this temperature.
To express an answer in exponential notation, use E to indicate the exponent. For example, 3.0 x 103 would be written, 3.0E3.

Part 2:
In the previous question, you had to calculate the the standard Free Energy Change (∆Go) in order to solve for the equilibrium constant, K, for the reaction:

N2(g) + 3H2(g) → 2NH3(g)

This is the Free Energy measured under standard conditions, when the reaction is started with 1.0 M of each of the three gases present. Calculate the non-standard Free Energy change (∆G) at 298 K, given the following non-standard initial concentrations of the three gases (Answer in kJ).
∆Gfo = -16.6 kJ/mol for NH3 (g) at 298 K

initial concentration (M)
N2 1.0
H2 0.09
NH3 4.1

Purchase this Solution
Solution Summary

This solution is comprised of answers related with Finding equilibrium constant and delta G.

Solution Preview

Hi,

here is the answer

Part A
The relation between standard free energy change and equilibrium constant is
∆G_°=-2.303RT ...

Solution provided by:
Jayant Kumar, MBA
Education
  • MBA, Indian Institute of Finance
  • Bsc, Madras University
Recent Feedback
  • "I've posted a similar question for another course. It's post 657940, and it's a practice problem that I'd like to use for the final exam. Your help will be greatly appreciated. "
  • "thank you!"
  • "Thank you again Jayant. You are super fast. "
  • "Thank you Jayant. You are appreciated. "
  • "Again, thank you Jayant. You are wonderful. "
Purchase this Solution
Free BrainMass Quizzes
Match Elements with their Symbols

Elements are provided: choose the matching one- or two-letter symbol for each element.

Functional groups in Organic Chemistry

You will be tested on the names of functional groups in Organic Chemistry. It is very important to know the functional groups to understand Organic reactions.

Organic Chemistry Naming: Alkanes

This is a quiz which is designed to assist students with learning the nomenclature used to identify organic compounds. This quiz focuses on the organic compounds called Alkanes.

General Chemistry - Classification of Matter

This test will assess your knowledge on the classification of matter which includes elements, compounds and mixtures.

Periodic table

View More Free Quizzes
Related BrainMass Solutions

  • Equilibrium Constant from Thermodynamic Parameters

    228594 Methods of Finding DeltaG and K (Gibb's Free Energy and Equilibrium Constant) from Standard Tabulated Thermodynamic Quantities.

  • calculate the equilibrium constant Kp

    So the first step is to find the Gibbs free energy of the reaction With T = 700 K Therefore, It shows how to calculate the equilibrium constant Kp given Gibbs free energy of the reaction. The solution is detailed and well presented.

  • Gibbs Energy Question

    Recall delta G = delta H -T delta S for constant pressure and temperature if heat is given off and entropy is increasing both spontaneous processes delta G is negative.

  • Free Energy Change and Standard Free Energy Change

    This equation only works at equilibrium, when delta-G = 0. The criterion for spontaneity is delta-G (with real life concentrations, pH and temperature), not delta-G°' (with concentrations of 1.0 M, pH 7.0 and 25°C).

  • Temperature at Equilibrium

    The solution provides step-by-step calculations for finding the temperature at which a reaction between two gases will be in equilibrium.

  • Determine the Equilibrium Constant

    26506 Determine the Equilibrium Constant Determine the equilibrium constant for the following reaction at 25 degrees celsius.

  • Calculate delta G; temperature; pressure

    Calculate delta G at 2000K, (b) Calculate delta G at standard temperature and pressure at 298K, and (c) Calculate the degree of dissociation of CO2 if the equilibrium mixture is brought to 2000K and 2 atm total pressure (assume enthalpy and entropy

  • Calculating Delta G given the Equilibrium Constant and Kelvins

    6505 Calculating delta G given the equilibrium constant and Kelvins. The value of the equilibrium constant for a particular reaction is 2.34 x 10^3 at 298k. Calculate the change in G for this reaction.

  • General Chemistry Question List

    Therefore, after equilibrium is reached, the equilibrium constant must be the same.

View More Related Solutions