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The volume of a gas at 20°C is 100cm3 at normal pressure. If it is heated to 100°C, its volume becomes 125cm3 at the same pressure, then volume coefficients of the gas (at normal pressure) is?

The volume of a gas at 20°C is 100cm3 at normal pressure. If it is heated to 100°C, its volume becomes 125cm3 at the same pressure, then volume coefficients of the gas (at normal pressure) is? Correct Answer 0.0033/°C

Vt=V0 (1+γt) V100/V20 =(1+100γ)/(1+20γ )=125/100=3/4 γ=1/300=0.0033/°C.

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