i wanna know why the in black paper work is w= +in white paper work is w= -bothe of questions mention expandedhow i know the work done by the system and work done on the systemi confusedhopefully and one simplify to me hopefully type by computer to undersrandingThank you 1. 5 moles of an ideal gas expands from 3L to 8L at a constant temperature of 300K. (a) What is the change in theinternal energy of the gas? (b) How much work was performed by the gas? (c) How much heat energy was transferred inthis process? E2A.4(a) A sample consisting of 1.00 mol Ar is expanded isothermally at20°C from 10.0 dm’ to 30.0 dm' (i) reversibly, (ii) against a constant externalpressure equal to the final pressure of the gas, and (iii) freely (against zeroexternal pressure). For the three processes calculate q, w, and AU.

Answered: 1. 5 moles of an ideal gas expands from…

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter5: Principles Of Chemical Reactivity: Energy And Chemical Reactions

Section5.4: The First Law Of Thermodynamics

Problem 5.5CYU: Nitrogen gas (2.75 L) is confined in a cylinder under constant atmospheric pressure (1.01 105...

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i wanna know

why the in black paper work is w= +

in white paper work is w= -

bothe of questions mention expanded

how i know the work done by the system and work done on the system

i confused

hopefully and one simplify to me

hopefully type by computer to undersranding

Thank you

1. 5 moles of an ideal gas expands from 3L to 8L at a constant temperature of 300K. (a) What is the change in the
internal energy of the gas? (b) How much work was performed by the gas? (c) How much heat energy was transferred in
this process?

E2A.4(a) A sample consisting of 1.00 mol Ar is expanded isothermally at
20°C from 10.0 dm’ to 30.0 dm' (i) reversibly, (ii) against a constant external
pressure equal to the final pressure of the gas, and (iii) freely (against zero
external pressure). For the three processes calculate q, w, and AU.

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