Questions
1 mole of a monoatomic gas at temperature expand slowly according to the law is proportional to T . Its final temperature is then heat supplied to the gas is
detailed solution
Correct option is D
Given ,Number of moles=1 moleTemperature =T0From QuestionP2∝T⇒P=cT , c is constant∴dPP=12dTT....1 PV=RT….(2)⇒PdV+VdP=RdT⇒PdV=RdT−VdP=RdT−RT⋅dPP=RdT−RT2dTT( by using (1))=RdT2∴∫T02T0 PdV=∫T02T0 RdT2=RT02 From first law of thermodynamicsQ=ΔU+W=nCVΔT+∫PdV=fnRT02+RT02=3(1)R2T0+RT02=2RT0 Therefore, the correct answer is (D).Talk to our academic expert!
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If Heat is added at constant volume, 6300 J of heat are required to raise the temperature of an ideal gas by 150 K. If instead, heat is added at constant pressure, 8800 joules are required for the same temperature change. When the temperature of the gas changes by 300K, the internal energy of the gas changes by
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