Questions
In a thermodynamical process pressure of fixed mass of gas is changed in such a way that the gas molecules give out 30 J of heat and 10 J of work is done on the gas. If the internal energy of the gas was 40 J, the final internal energy will be:
detailed solution
Correct option is C
dQ = du + dw-30 = UdQ =U2-U1+dw -30 =U2-40 -10 U2=20 JTalk to our academic expert!
Similar Questions
A thermodynamical process is shown in with = 3 X 104 Pa; = 2 X 10-3 m3; = 8 x 104 N/m2; = 5 x 10-3 m3.In the processes AB and BC, 600 J and 200 J of heat is added to the system respectively. The change in internal energy of the system in process AC would be:
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