Air is heated in a cylinder with a piston that keeps the pressure constant at 6 atm. The initial temperature of the gas, before heating, was 20°C, with an initial volume of the gas of 2 cubic metre. What is the heat (in kJ) that needs to be supplied to elevate the temperature of the gas to 100°C? The molecular weight of air is 28 g/mol. For air, cp (specific heat at constant pressure) = 1015 J/(kg. K) and cv (specific heat a constant volume) = 718 J/(kg. K). Hint: estimate the mass of the gas first. 1.13 kJ Your last answer was interpreted as

Air is heated in a cylinder with a piston that keeps the pressure constant at 6 atm. The initial temperature of the gas, before heating, was 20°C, with an initial volume of the gas of 2 cubic metre. What is the heat (in kJ) that needs to be supplied to elevate the temperature of the gas to 100°C? The molecular weight of air is 28 g/mol. For air, cp (specific heat at constant pressure) = 1015 J/(kg. K) and cv (specific heat a constant volume) = 718 J/(kg. K). Hint: estimate the mass of the gas first. 1.13 kJ Your last answer was interpreted as

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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