Question

an open vessel containing air is heated from 300 K to 400k. the fraction of Air,
which goes out with respect to originally presente is ​

Answer 1

According to ideal gas equation

PV=nRT

n1 =1

T1 =300k,

T2=400k

n2=?

P1V1=n1 RT1 

P2 V2=n2RT

n1/n2 = T2/T1

1/n2 =400/300

n2=3/4

The fraction of air present in vessel after heating n2=3/4

The fraction of air which goes out of the vessel =1-3/4

=1/4

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