JAMB - Chemistry (2002 - No. 40)
A fixed mass of gas has a volume of 92\(cm^3\) at 3ºC. What will be its volume at 18ºC if the pressure remains constant?
15.3cm3
87.3cm3
552.0cm3
97.0cm3
Explicació
According to Charle's law,
\(\frac{V_1}{T_1}\) =\(\frac{V_2}{T_2}\)
T\(_1\) = 3+273 = 276K and T\(_2\) = 18 + 273 = 291K
∴ \(\frac{92}{276}\) = \(\frac{V_2}{291}\)
V\(_2\) = \(\frac{92}{291}\) X 276
= 97.0\(cm^3\)