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Question

A gas occupies a volume of 300 cc at 27C and 620 mm pressure. Find the volume of the gas at 47C and 640 mm.


A

260 cc

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B

310 cc

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C

390 cc

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D

450 cc

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Solution

The correct option is B

310 cc


Given,
Intial temperature T1 = 27C
Final temperature T2 = 47C
Intial pressure P1 = 620 mm
Final pressure P2 = 640 mm
Intial volume V1 = 300 cc

Using Ideal gas equation,

P1V1T1 = p2V2T2

620×300300 = 640×V2320

V2 = 310 cc


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