A vertical cylinder with a heavy piston contains air at 310 K. The initial pressure is 3.45 x 105 Pa, and the initial volume is 0.370 m³. Take the molar mass of air as 28.9 g/mol and assume Cy (a) Find the specific heat of air at constant volume in units of 1/kg °C. J/kg °C. (b) Calculate the mass of the air in the cylinder. kg (c) Suppose the piston is held fixed. Find the energy input required to raise the temperature of the air to 695 K. kJ (d) Assume again the conditions of the initial state and assume the heavy piston is free to move. Find the energy input required to raise the temperature to 695 K. kJ

A vertical cylinder with a heavy piston contains air at 310 K. The initial pressure is 3.45 x 105 Pa, and the initial volume is 0.370 m³. Take the molar mass of air as 28.9 g/mol and assume Cy (a) Find the specific heat of air at constant volume in units of 1/kg °C. J/kg °C. (b) Calculate the mass of the air in the cylinder. kg (c) Suppose the piston is held fixed. Find the energy input required to raise the temperature of the air to 695 K. kJ (d) Assume again the conditions of the initial state and assume the heavy piston is free to move. Find the energy input required to raise the temperature to 695 K. kJ

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter4: The Second Law Of Thermodynamics

Section: Chapter Questions

Problem 18P: A tank contains 111.0 g chlorine gas l2), which is at temperature 82.0 and absolute pressure...

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