First slide

Thermometry

Question

A sample of an ideal gas is heated so that its volume as well as pressure are doubled. The percent increase in its absolute temperature must be

Moderate

A

400 %
B

300 %
C

200 %
D

100 %

Solution

PV = nTR, if P and V are to be doubled T must be quadrupled, as n and R are constant. Percent change is $[(4 T - T) / T] \times 100$

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