143 calories of heat energy are supplied to a gas. Its internal energy rises by 500 joules. If the pressure remains constant and is equal to 10 5 N m - 2 , the change in the volume of the gas is

Question

143 calories of heat energy are supplied to a gas. Its internal energy rises by 500 joules. If the pressure remains constant and is equal to 10 5 N m - 2 , the change in the volume of the gas is, 1000 litres, 100 litres, 10 litres, 1 litre

MARKS App · Accepted Answer

The energy supplied = 143 calories = 143 × 4 .2 joule = 600 .6 J du = rise in internal energy = 500 J dw = work done = 600 .6 - 500 J d w = P d v = 100.6 J 10 5 d v = 100 .6 J d v = 100.6 10 5 = 10 - 3 m 3 = 1 litre

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