Law of Degradation of Energy - MCQs with Answers

Q1. Which law of thermodynamics expresses that the energy is always conserved quantity wise?

a. First law
b. Second law
c. Third law
d. none of the above

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Q2. The law of degradation of energy states that

a. the energy is always conserved quantity wise
b. the energy is always conserved quality wise
c. the energy is always degraded quantity wise
d. the energy is always degraded quality wise

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Q3. If W_R and W_I be the work done by a reversible and irreversible processes respectively. In both the processes, system changes between the same end states interacting with the surroundings at pressure p₀ and T₀. What will be relation between W_R and W_I ?

a. W_R = W_I
b. W_R > W_I
c. W_R < W_I
d. cannot say

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Q4. Two reversible processes undergone by a closed system between same two end states

a. produce different amounts of work
b. produce same amount of work if two systems are exchanging energy between themselves
c. produce same amount of work if two systems are exchanging energy with the surroundings
d. none of the above

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