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In an isothermal expansion of one mole of an ideal gas against vacuum from 10 litre to 100 litre at 27 o C , the quantity of heat absorbed by the gas is

Correct answer

0

Step-by-step solution

The quality of heat absorbed by the gas, Q = Δ E + W , here W is the work done by the gas. For free expansion i.e., expansion against vacuum, W = 0 ; at constant temperature, the internal energy of an ideal gas is constant and so Δ E = 0 . Thus Q = 0 .

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