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If gas is expanded freely from 1 litre to 5 litres at a temperature of 60-degree centigrade what is the work done?

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in Chemistry – Class 11 by (148k points)
If gas is expanded freely from 1 litre to 5 litres at a temperature of 60-degree centigrade what is the work done?

(a) Positive

(b) Negative

(c) 0

(d) Infinity

I got this question by my school principal while I was bunking the class.

The question is from Thermodynamics Applications topic in division Thermodynamics of Chemistry – Class 11

1 Answer

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Best answer
Right answer is (c) 0

The best I can explain: When gas is expanded freely in a vacuum there is zero pressure exerted. The formula for work done is given by pressure X change in volume = 0 x 4. So the work done is zero in the process of free expansion.

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