A flexible container is charged with a certain volume of gas at 318.3 K. Under c
ID: 825427 • Letter: A
Question
A flexible container is charged with a certain volume of gas at 318.3 K. Under conditions of constant pressure and moles of gas, how does the volume of the gas change when the temperature is decreased by a factor of four?
The volume decreases by a factor of four.
The volume decreases by a factor of two.
The volume remains the same.
The volume increases by a factor of three.
The volume increases by a factor of two.
The volume decreases by a factor of four.
The volume decreases by a factor of two.
The volume remains the same.
The volume increases by a factor of three.
The volume increases by a factor of two.
Explanation / Answer
From Ideal gas equation ,
PV = NRT
where,
P = Pressure
V = volume of the contanier
N= no. of moles
R = constant
T = Temperature of the gas
So, when Pressure P & no. of moles N is constant,
Volume V is directly proportional to temperature T. (i.e the change in the volume is with same factor as the temperature)
when the temperature is decreased by a factor of four , The volume decreases by a factor of four.
A) The volume decreases by a factor of four.-----------------------------ANSWER
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