A gas expands by 0.5 L against a constant pressure of 1 atm. Calculate the work done in joule and calorie.
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Given:
Expansion of gas = 0.5L
Pressure = 1 atm
To Find:
Work done in Joule and Calorie
Solution:
Using the formula of work-
Work = P × change in the volume
Substituting the values
= −1 × 0.5
= − 0.5l
Calculating in Joules
= −0.5 × 101.328
= −50.664 J
Calculating in Cal
0.5litre − atm
= −0.5×24.20
= −12.10cal
Answer: The work done in Joules in - 50.664J and in calorie is - 12.10cal.
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