A) 2000 J
B) 1000 J
C) صفر
D) -2000 J
صحیح جواب: B
خالص کام کیا گیا = pV وکر میں گھیرا ہوا رقبہ۔
یعنی، $ \Delta ABC $ $ =\frac{1}{2}\times 5\times {10^{-3}}\times 4\times 10^{5}J $ $ =10^{3}J $ $ =1000,J $
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