Question

25 moles de gas metano son contenidos en un contenedor de 20 litros a una presión de 30 x 10° Pa. La temperatura del gas debe ser: 25 moles of methane gas are contained in a 20-liter container at a pressure of 30 x 10 Pa. The gas temperature must be: Ос

Answer 1

For n moles of a gas occupying volume V, at pressure P and absolute temperature T we have from ideal gas law as

PV = nRT

R is the universal gas constant

Values given are

P = 30 x 105 Pa

V = 20 1 = 0,02 m3

n = 25 moles

Putting the values,

30 x 105 x 0.02 = 25 X 8.31 XT

or, T = 288.81 K = (288.81 – 273.15) C = 15.8°C 16°C

Option d is correct.