Question

If there are 80 liters of argon gas in a piston and the piston expands the gas until its volume is 2000 liters with a pressure of 0.46 atm, what was the initial pressure of the argon? Temperature is constant at 293 K.

A. 11.5 atm
B. 54.34 atm
C. 251.2 atm
D. 14.83 atm

Answer 1

Answer:

A.

Explanation:

answer for founders education

Answer 2

The initial pressure of argon is 11.5 a t m, therefore option (a) is correct.

What do you mean by Gas law ?

Gas law is defined as an examination of the behaviour of gases. This is a law that relate the pressure, volume, and temperature of a gas.

Ideal gas equation,

PV = n R T.

where,

P=pressure of the gas

V=volume of the gas

n=no. of moles

R=Gas constant

T=Temperature of the gas

To calculate the initial pressure of the argon-

P₁V₁=P₂V₂

given,

P₁=? , P₂=0.46atm , V₁=80 lit , V₂=2000 lit

P₁×80=0.46×2000

P₁=0.46×2000/80

P₁=11.5 a t m

The initial pressure of argon is 11.5 a t m, hence option (a) is correct.

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