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Chemical Thermodynamics MCQ Questions And Answers - Chemistry Class 11

Chemical Thermodynamics MCQs : This section focuses on the "Chemical Thermodynamics" in Chemistry Class 11. These Multiple Choice Questions (MCQs) should be practiced to improve the Chemistry Class 11 skills required for various exams, interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.

Question 1

Chemical thermodynamics is the study of relation between?

A. work
B. heat
C. chemical reactions
D. All of the above

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Question 2

Which of the following referred to the energy content within the system?

A. External Energy
B. Internal Energy
C. Overall Energy
D. None of the above

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Question 3

Internal energy of a system may change when?

A. Heat passes into or out of the system
B. Work is done on or by the system or matter enters or leaves the system
C. Both A and B
D. None of the above

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Question 4

Thermodynamics defines a system as the part of the universe under study that is the part where observations are made.

A. Yes
B. No
C. Can be yes or no
D. Can not say

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Question 5

How many type of Thermodynamic System?

A. 1
B. 2
C. 3
D. 4

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Question 6

Which law of thermodynamics has entropy of a perfect crystal at absolute zero is zero?

A. Zero law of thermodynamics
B. First law of thermodynamics
C. Second law of thermodynamics
D. Third law of thermodynamics

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Question 7

What will be the value of ΔH, if the forward and reverse reactions have the same energy of activation?

A. ΔH = ΔG = ΔS = 0
B. ΔS = 0
C. ΔG = 0
D. ΔH = 0

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Question 8

What is the function of a catalyst in a chemical reaction?

A. decrease rate constant of reaction
B. does not affect the equilibrium constant of reaction
C. reduces enthalpy of reaction
D. increases activation energy of reaction

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Question 9

At constant pressure and temperature, the direction of any chemical reaction is one where the _________ decrease

A. Entropy
B. Enthalpy
C. Gibbs Energy
D. None of the above

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Question 10

Rudolf Clausius and William Thomson (Kelvin) stated both the First Law – which preserves total energy – and the Second Law of Thermodynamics around 1850.

C. Can be true or false
D. Can not say

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