Physics JAMB

the pressure of 3 moles of an ideal gas at a temperature of 27°C having a volume of 10−³m³ is?

A. 2.49 x 105 Nm-2
B. 7.47 x 105 Nm-2
C. 2.49 x 106 Nm-2
D. 7.47 x 106 Nm-2

Correct Answer:

Option D = 7.47 x 106 Nm-2

Explanation

From the relation PV = nRT
V = 10-3; n = 3 moles; T = 27 + 273 = 300k
R = 8.3 j mol-1 K-1
=> P = nRT/V = 3 X 8.3 X 300/10-3 = 7.47 X 106 Nm-2

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