JAMB - Chemistry (1991 - No. 7)
A given quantity of a gas occupies a volume of 228 cm3 at a pressure of 750mm Hg. What will be its volume at atmospheric pressure?
220 cm3
225 cm3
230 cm3
235 cm3
คำอธิบาย
P1V1 = P2V2 ∴ 750 x 228 = 760 V2
V2 = (750 x 228 cm3) / (760) = 225 cm3
V2 = (750 x 228 cm3) / (760) = 225 cm3