CBSE Class 11-science Answered
An ideal gas expand against a constant external pressure at 2.0 atmosphere from 20 litre to 40 litre and absorb 10kJ of energy from surrounding.What is the change in internal energy of the system?(1 atm-litre = 101.3J)
Asked by | 17 Nov, 2012, 11:15: AM
Expert Answer
dH = dE +dnRT
10 =dE + P.dV
10 = dE + 2x 20
dE= 10-40
dE=-30KJ
Answered by | 21 Nov, 2012, 05:32: PM
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