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Question

If 10 g of a gas at atmospheric pressure is cooled from 273C to 0C, keeping the volume constant, its pressure would become :

A
1/273 atm
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B
2 atm
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C
12atm
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D
5.05×104Nm2
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Solution

The correct options are
B 12atm
D 5.05×104Nm2
Given,

T1=273 or 546.15 K
P1=1 atm
T2=0C or 273.15 K
P2=?

P1T1=P2T2

P2=P1×T2T1=1×273.15546.15

=12atm or 5.05×104Nm2

Hence, the correct options are C and D

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