1.

An deal gas is expandedsuchthatpT^(2)=a constant findthe coefficientof volumeexpansion ofthe gas

Answer»

SOLUTION :fromidealgas equation
pV = nRT(or )`r= ( nRT)/(V )`
Asgasexpandssuchthat `pT^(2)` = a constant =C
so `((n RT)/(V ))T^(2)= C ` (or )` T^(3)alpha V`
(or)`T^(3) = KV`
differentiatingit w.r.t. T wehave
`3T^(2) = k (dV)/(dT )`
Dividingit by `T^(3)= kV `
`(3)/(T)= (1)/(V ). (dV)/(dT )`
coefficientof volumeexpansion `r = (1)/(V ). (d V)/(dT )= (3)/(T )`


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