1.

2.At0°Cand760minHgpressureagasoccupiesavolume of 100 cm The Kelvin temperature (absolutetemperature) of the gas increased by one-fifth while thepressure is increased one and a half times. Calculate thefinal volume ofthe gas. (Ans: 80 с.с.) (ICSE 95)

Answer»

Given

T1 = 0°C=273k.

T2=1/5*(273)+273=327.6k

P1= 760mm.

P2=760+1/2*(760)=1140mm

V1= 100cc. V2=?

using ideal gas eqn.

P1*V1/T1=P2*V2/T2

760*100/273=1140*VE/327.6

On solving V2 will be equal to 80cc

= 80 cc

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