A sample of methane, CH4, of mass 4.50g occupies 12.7 dm³ at 310K. a. Calculate the irreversible work done when it expands isothermally against an external pressure of 200 torr until its volume is increased by 3.3 dm³. b. Calculate the work done if the same expansion occurs reversibly

A sample of methane, CH4, of mass 4.50g occupies 12.7 dm³ at 310K. a. Calculate the irreversible work done when it expands isothermally against an external pressure of 200 torr until its volume is increased by 3.3 dm³. b. Calculate the work done if the same expansion occurs reversibly

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 2.7E: Apistonhaving0.033 mol ofgas at 35.0Cexpands from0.77 Lto 2.00L.Calculate the work performed if...

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Question

. A sample of methane, CH4, of mass 4.50g occupies 12.7 dm³ at 310K.
a. Calculate the irreversible work done when it expands isothermally against an external
pressure of 200 torr until its volume is increased by 3.3 dm³.
b. Calculate the work done if the same expansion occurs reversibly.

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Step 1: Isothermal work

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Step 2: a) irreversible work

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Step 3: b)Reversible work

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