Entropy -Multiple Choice Questions Quiz

Interactive MCQs on “Entropy”:

Solve the following 10 questions. Only one option is correct. Click on the “Submit” button when done. Click on the “embed” button to use this quiz on your website. Click on “WhatsApp” to share this quiz.

Question 1:What does the term entropy refer to in thermodynamics?

(A) Energy available for work
(B) Disorder or randomness
(C) Heat content of the system
(D) Temperature of the system

Question 2:In which direction does entropy naturally increase in an isolated system?

(A) It decreases
(B) It increases
(C) It remains constant
(D) It fluctuates

Question 3: What happens to the entropy of a system when heat is added to it?

(A) Entropy decreases
(B) Entropy remains the same
(C) Entropy increases
(D) Entropy becomes zero

Question 4:Which process is associated with a decrease in entropy?

(A) Melting
(B) Freezing
(C) Boiling
(D) Evaporation

Question 5:What is the unit of entropy?

(A) Joules (J)
(B) Celsius (°C)
(C) Watts (W)
(D) Joules per kelvin (J/K)

Question 6:What is the change in entropy for a reversible process?

(A) Zero
(B) Positive
(C) Negative
(D) Infinite

Question 7:In a spontaneous process, what happens to the total entropy of the system and surroundings?

(A) It decreases
(B) It stays the same
(C) It increases
(D) It fluctuates

Question 8:What does the increase of entropy indicate in terms of energy in a system?

(A) Energy is concentrated
(B) Energy is being used up
(C) Energy is being spread out
(D) Energy is conserved

Question 9:Which of the following processes leads to an increase in entropy?

(A) Freezing
(B) Condensation
(C) Vaporization
(D) Compression

Question 10:What is the entropy of a perfectly ordered system at absolute zero temperature (0 K)?

(A) Zero
(B) Infinite
(C) Positive
(D) Negative