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
A
46.0 Nm-2
B
75.0 Nm-2
C
80.0 Nm-2
D
85.3 Nm-2
E
139.4 Nm-2
Verified Correct Answer: B.
Step-by-Step Mathematical Solution
P1/T1 = P2/T2
80/(273+47) = P1/(273+27) = 75Nm-2
Source: Myschool Past Questions Archive (Record #21213)