Entropy and Temperature (18.2.2)

Question 1

• The entropy change for a reversible process at equilibrium is equal to the heat of the system divided by the temperature of the system.

Answer 1

• The entropy change for a reversible process at equilibrium is equal to the heat of the system divided by the temperature of the system.

Question 2

• The change in entropy for a reaction is the sum of the entropy of the products minus the sum of the entropy of the reactants.

Answer 2

• The change in entropy for a reaction is the sum of the entropy of the products minus the sum of the entropy of the reactants.

Question 3

• By the third law of thermodynamics, a perfect crystal at absolute zero (0 K) has perfect order (S = 0).

Answer 3

• By the third law of thermodynamics, a perfect crystal at absolute zero (0 K) has perfect order (S = 0).