Thermodynamics - Result Question 17
18. A gas is taken through the cycle $A \to B \to C \to$ $A$, as shown in figure. What is the net work done by the gas?
[2013]
(a) $1000 J$
(b) zero
(c) $-2000 J$
(d) $2000 J$
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Answer:
Correct Answer: 18. (a)
Solution:
(a) $W _{\text{net }}=$ Area of triangle $ABC$
$=\frac{1}{2} AC \times BC$
$=\frac{1}{2} \times 5 \times 10^{-3} \times 4 \times 10^{5}=1000 J$
