A mole of a diatomic gas at 0.1 m^3 is expanded isothermally at 298 Kelvins to 1.0 m^3 bar against a constant external pressure of 0.5 bar. Which of the following statements is true? I. q=w II. q = -w III. ΔH=ΔU IV. ΔH > ΔU

A mole of a diatomic gas at 0.1 m^3 is expanded isothermally at 298 Kelvins to 1.0 m^3 bar against a constant external pressure of 0.5 bar. Which of the following statements is true? I. q=w II. q = -w III. ΔH=ΔU IV. ΔH > ΔU

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter17: Energy In Thermal Processes: The First Law Of Thermodynamics

Section: Chapter Questions

Problem 46P: A 2.00-mol sample of a diatomic ideal gas expands slowly and adiabatically from a pressure of 5.00...

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Concept explainers

Ideal Gas Law

Ideal gas law states that the product of pressure and volume of a gas directly varies with the product of the number of moles, the universal gas constant, and the temperature of the gas.

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A mole of a diatomic gas at 0.1 m^3 is expanded isothermally at 298 Kelvins to 1.0 m^3 bar against a constant external pressure of 0.5 bar. Which of the following statements is true?

I. q=w

II. q = -w

III. ΔH=ΔU

IV. ΔH > ΔU

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