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The molar heat capacity of a certain gas at constant pressure for temperature in the range of 300 to 400 K and for low or moderate pressures can be approximated as Cp=a+b7, where a = 25.73 J K-1 mol-1 and b = 0.01297 J K-2 mol-1. Calculate AU (in kJ) when 2.00 mol of the gas initially at 1.00 atm is reversibly heated from 27 °C to 127 °C at constant volume. Assume perfect gas behaviour.

The molar heat capacity of a certain gas at constant pressure for temperature in the range of 300 to 400 K and for low or moderate pressures can be approximated as Cp=a+b7, where a = 25.73 J K-1 mol-1 and b = 0.01297 J K-2 mol-1. Calculate AU (in kJ) when 2.00 mol of the gas initially at 1.00 atm is reversibly heated from 27 °C to 127 °C at constant volume. Assume perfect gas behaviour.

Physical Chemistry
Physical Chemistry
2nd Edition
ISBN:9781133958437
Author:Ball, David W. (david Warren), BAER, Tomas
Publisher:Ball, David W. (david Warren), BAER, Tomas
Chapter2: The First Law Of Thermodynamics
Section: Chapter Questions
Problem 2.12E: If the heat capacity varies withtemperature, abetter form ofequation 2.9 isto solve q=TiTfnCT-t A...
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The molar heat capacity of a certain gas at constant pressure for temperature in the range of 300 to 400 K and for low or moderate pressures can be approximated as Cp=a+b7, where a = 25.73 J K-1 mol-1 and b = 0.01297 J K-2 mol-1. Calculate AU (in kJ) when 2.00 mol of the gas initially at 1.00 atm is reversibly heated from 27 °C to 127 °C at constant volume. Assume perfect gas behaviour.
Transcribed Image Text:The molar heat capacity of a certain gas at constant pressure for temperature in the range of 300 to 400 K and for low or moderate pressures can be approximated as Cp=a+b7, where a = 25.73 J K-1 mol-1 and b = 0.01297 J K-2 mol-1. Calculate AU (in kJ) when 2.00 mol of the gas initially at 1.00 atm is reversibly heated from 27 °C to 127 °C at constant volume. Assume perfect gas behaviour.
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