The molar heat capacities of gases are not perfectly constant, as we've assumed, but increaseslowly with temperature. An empirical formula for the molar heat capacity at constant volume ofnitrogen is Cv = (20.6 -1.6 × 10-³T+8.0 × 10-6T²) J/mol K, where T is in KPart AWhat is the entropy increase of the gas if 4.2 g of nitrogen in a rigid container are slowly heated from 300°C to 500°C?Express your answer with the appropriate units.AS = 0.15SubmitμАJKPrevious Answers Request Answer< Return to AssignmentX Incorrect; Try Again; One attempt remaining?Provide Feedback

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Answered: The molar heat capacities of gases are…

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Part A Consider the following two-step process. Heat is allowed to flow out of an ideal gas at constant volume so that its pressure drops from P₁ = 2.7 atm to P2 = 1.7 atm. Then the gas expands at constant pressure, from a volume of V₁ = 5.9 L to V₂ = 9.6 L, where the temperature reaches its original value. See the figure ( Figure 1). Calculate the total work done by the gas in the process. Express your answer to two significant figures and include the appropriate units. ☐ о W = Value ? Units Figure P P₁ b P2 P 1 of 1 Submit Request Answer Part B Calculate the change in internal energy of the gas in the process. Express your answer with the appropriate units. με ? AU = Value Units V₁ V2 V
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Can you please answer the follwing question, I did the right work but it seems that is not the right answer.
I need help with A and B for this problem. I want to see the detailed steps.
part b please