WAEC - Physics (1988 - No. 14)
A given mass of gas has a pressure of 80Nm-2 at a temperature of 47oC. If the temperature is reduced to 27oC with the volume remaining constant, the new pressure is
46.0 Nm-2
75.0 Nm-2
80.0 Nm-2
85.3 Nm-2
139.4 Nm-2
Förklaring
P1/T1 = P2/T2
80/(273+47) = P1/(273+27) = 75Nm-2
80/(273+47) = P1/(273+27) = 75Nm-2