A rigid, sealed metal can containing air initially at is placed inside a very large…
CHEMISTRY · Single correct · A Level · Chemistry · Thermodynamics · Thermodynamics
Problem
A rigid, sealed metal can containing air initially at 300K is placed inside a very large oven maintained at 400K. The can remains in the oven until the air inside reaches 400K. Which of the following statements is most consistent with the second law of thermodynamics?
(a) The entropy of the air inside the can increases, the entropy of the oven decreases by the same magnitude, so the total entropy of the air-plus-oven system remains constant.
(b) The entropy of both the air inside the can and the oven remain unchanged because no work is done.
(c) The entropy of the air inside the can increases, the entropy of the oven decreases by a smaller magnitude, and the total entropy of the air-plus-oven system increases.
(d) The entropy of the air inside the can increases, the entropy of the oven also increases by a smaller magnitude, so the total entropy of the air-plus-oven system increases.