Entropy: Which of the following is a false statement?
A. Entropy is a quantitative measure of disorder.
B. The total entropy change in one cycle of a Carnot engine is zero.
C. The entropy of an isolated system must be conserved (it remains constant).
D. Entropy can be measured in units of J/K.
Answer: C
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Find the net work done by friction on the body of a snake slithering in a complete circle of 3.93 m radius. The coefficient of friction between the ground and the snake is 0.25, and the snake's weight is
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