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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> 13<br />

The evoluti<strong>on</strong> of a system from state a to state b is shown <strong>on</strong> both the p-V<br />

<strong>and</strong> T-S <strong>diagrams</strong> below. With n = 1 <strong>and</strong> ΔE int = –5000 J, this gas is:<br />

p (Nm –2 )<br />

2,000<br />

b<br />

a<br />

1 V (m3 2 )<br />

T (K)<br />

500<br />

250<br />

a) m<strong>on</strong>atomic b) diatomic c) polyatomic<br />

d) not enough informati<strong>on</strong> to tell<br />

b<br />

10 S (JK –1 30 )<br />

PHYS 1101, Winter 2009, Prof. Clarke 34<br />

a<br />

ΔE int = nC V ΔT<br />

C V ~ 12 (m<strong>on</strong>atomic)<br />

C V ~ 21 (diatomic)<br />

C V ~ 25 (polyatomic)

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