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Thermodynamics Exam questions and answers Graded A+| latest update The compressor exerts a pressure of 400 Pa to compress nitrogen gas from 3 L to 1 L. If no heat transfer occurs, how much will the internal energy of the gas change? (Note: 1 m3 = 1000
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Thermodynamics Exam questions and answers Graded A+| latest update The compressor exerts a pressure of 400 Pa to compress nitrogen gas from 3 L to 1 L. If no heat transfer occurs, how much will the internal energy of the gas change? (Note: 1 m3 = 1000 L and 1 J = 1 Pa∙m3.) Since Q = 0 --- U = W W is done on the system (gas) during compression --- W=−PΔV L --- m^3 - 3 L = 3 x10^-3 m^3 - 1 L = 1 x 10^-3 m^3 ΔV=Vf−Vi=(1×10^−3)−(3×10^−3)= −2×10^−3 m^3 W=−PΔV --- −400Pa × (−2×10^−3m^3) = 0.8 J
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