First slide

Change in internal energy

Question

5 moles of hydrogen initially at STP are compressed adiabatically so that temperature becomes 400°C. Increase in the internal energy of the gas in kilo joules is:(take R=8.3 J/mol-K)

Easy

A

41.50
B

80.55
C

65.55
D

21.55

Solution

$∆ U = {nC}_{V} ∆ T$

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