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# Question 2

2 liters of agas is enclosed in a vessel at a pressure of 760 mm Hg. If the temperature remains constant,

calculate the pressure when the volume changes to 40 dm3.

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V = 2 litres

P = 760 mm

V1 = 4000 m3 [1 dm3 = 4 litres]

P1= ?

\begin{array}{l} \frac{\mathrm{PV}}{\mathrm{T}}=\frac{\mathrm{P} 1 \mathrm{V} 1}{\mathrm{Tl}} \\ \frac{760 \mathrm{x} 2}{\mathrm{T}}=\frac{\mathrm{Pl} \times 4}{\mathrm{T} 1} \end{array}

P1= 760/2 = 380mm

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