There are two processes ABC and DEF. In which of the processes is the amount of work done by the gas greater ?
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Answer & explanation
Correct answer: option 2
\(W_{ABC} = \frac{\pi r^2}{2} = \frac{\pi 6^2}{2} = 18 \pi\)
\(W_{DEF} = \frac{\pi*3^2}{2} + \frac{\pi *3^2}{4} + (15-12)*18 = 6.75 \pi + 54\)
\(W_{DEF} > W_{ABC}\)