Question

If you have 3 moles of gas at a pressure of 2.5 atmospheres and a volume of 8 liters, what is the temperature? Pay attention to the unit of pressure used.

A.) 81.27 K
B.) 0.81 K
C.) 57.86 K
D.) 25 K

Answer 1

The temperature of the gas would be 81.2 K

Ideal gas equation

The ideal gas equation is given by:

PV = nRT, where P, V, n, R, and T equals pressure, volume, number of moles, constant, and temperature respectively.

In this case, V = 8L, n = 3 moles, R = 8.317, and P = 2.5 atm or 253.3125 kpa

T = PV/nR = 253.3125 x 8/3 x 8.317 = 2026.5/24.951 = 81.2 K

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