Physics: Thermodynamics
36. Question
Which of the following is incorrect regarding the first law of thermodynamics?
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37. Question
A system goes from A to B via two processes I and II as shown in figure. If ΔU1 and ΔU2 are the changes in internal energies in the processes I and II respectively, then
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38. Question
200g water is heated from 40°C to 60°C. Ignoring the slight expansion of water, the change in its internal energy is close to (Given specific heat of water = 4184 J/kgK):
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39. Question
A gas is compressed from a volume of 2m3 to a volume of 1m3 at a constant pressure of 100 N/m2. Then it is heated at constant volume by supplying 150 J of energy. As a result, the internal energy of the gas:
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40. Question
An insulated container of gas has two chambers separated by an insulating partition. One of the chambers has volume V1 and contains ideal gas at pressure P1 and temperature T1 . The other chamber has volume V2 and contains ideal gas at pressure P2 and temperature T2 . If the partition is removed without doing any work on the gas, the final equilibrium temperature of the gas in the container will be
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