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Q.

1 mole of Al4C3(s) reacts with H2O in a closed vessel at 27°C against atmospheric pressure. Work done is

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a

zero

b

- 600 cal

c

- 1800 cal

d

+ 1800 cal

answer is D.

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Detailed Solution

W = - p∆V
Since, vessel is closed hence, volume = constant
∴    ΔV=0∴    W=−pΔV=0

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