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Isothermal process on p-V, T-V, and p-T diagrams

Isothermal process on p-V, T-V, and p-T diagrams

Isothermal process on p-V, T-V, and p-T diagrams

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Clicker questi<strong>on</strong> 2<br />

C<strong>on</strong>sider the p-V diagram below in which the system evolves from a → b<br />

→ c. What is V c , the volume at state c?<br />

p (Nm –2 )<br />

10 5<br />

p c<br />

a<br />

1<br />

T 0<br />

V c<br />

b<br />

c<br />

V (m 3 )<br />

a) 0.5 m 3<br />

b) 2.0 m 3<br />

c) 4.0 m 3<br />

d) 8.0 m 3<br />

e) Not enough informati<strong>on</strong> to tell<br />

need to know p c<br />

first law of thermodynamics: ΔE int = Q – W ( = nC V ΔT )<br />

ideal gas law: pV = nRT<br />

PHYS 1101, Winter 2009, Prof. Clarke 7

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