Explore topic-wise MCQs in Chemistry Questions and Answers.

This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.

1.

In the equation, ΔG = – 2.303 RT logK, what is K?

A. change in temperature
B. kelvin
C. equilibrium constant
D. change in enthalpy
Answer» D. change in enthalpy
Discussion
2.

Calculate the Gibbs free energy for the conversion of oxygen to Ozone at room temperature if KP is given as 2.47 x 10-29.

A. 163 kJ/mol
B. 163 J/mol
C. 163 kJ
D. 163 k/mol
Answer» B. 163 J/mol
Discussion
3.

Find out whether the following reaction is spontaneous or not at 127 degrees centigrade? N2(g) + 3H2(g) \(\rightleftharpoons\) 2NH3(g); ΔH = 92.22 kJ/mol and ΔS = -198.75 J/K-mol.

A. it is spontaneous
B. it is not spontaneous
C. it may be spontaneous
D. cannot predict
Answer» C. it may be spontaneous
Discussion