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500cm -3 of a gas is collected at 0 C and at a ... - WAEC Physics 1994 Question

500 c m^{- 3}

of a gas is collected at 0°C and at a pressure of 72cm of mercury. What is the volume of the the gas at the same temperature and at a pressure of 76cm of the same mercury?

A

\frac{76 \times 500}{72} c m^{3}

B

\frac{72 \times 500}{76} c m^{3}

C

\frac{72 \times 76}{500} c m^{3}

D

\frac{76}{72 \times 500} c m^{3}

correct option: b

(P_1V_1=P_2V_2, V_2= \frac{72\times500}{76}cm^3)

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