An ideal gas is heated from 27° C to 627° C at constant pressure. If initial volume of gas is 4 m ³, then the new volume of the gas will be (a) 12 m ³ (b) 6 m ³ (c) 3 m ³ (d) 2 m ³

Answer: (a). Charles's law: V ∝ T at constant P; T₁ = 300 K, T₂ = 900 K. V₂ = V₁ (T₂)/(T₁) = 4 × (900)/(300) = 12 m ³ So the answer is (a) 12 m ³.

An ideal gas is heated from 27° C to 627° C at constant pressure. If… | MHT CET 2026 (18 Apr, Shift 1)

Q4MHT CET 2026 · 18 APR · SHIFT 1Easy

Gas Laws & Ideal Gas Equation

An ideal gas is heated from $27^\circ$ C to $627^\circ$ C at constant pressure. If initial volume of gas is $4$ m $^{3}$ , then the new volume of the gas will be

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Answer: (a)

Charles's law: $V \propto T$ at constant $P$ ; $T_1 = 300$ K, $T_2 = 900$ K.
$V_2 = V_1 \dfrac{T_2}{T_1} = 4 \times \dfrac{900}{300} = 12$ m $^3$
So the answer is (a) $12$ m $^3$ .

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