A Block of Mass M = 0 $\mu$ _k = 0 $\circ$

question 28

Multiple Choice

A block of mass m = 0.2 kg slides across a rough horizontal surface with coefficient of kinetic friction $\mu$ _k = 0.5.What is the change in entropy after the block has moved a distance of 1 m? The temperature of the block and surrounding is 22 ^$\circ$ C.

• A)4.5 \(\times\) 10^-2 J/K
• B)3.3\(\times\)10 ^-3 J/K
• C)6.7\(\times\)10 ^-3 J/K
• D)9.0\(\times\)10 ^-3 J/K
• E)zero

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