0

Guest

Courses New

How much heat would be absorbed by 2 litres of an ideal gas at 5 atm pressure if it expands isothermally into an evacuated flask of 5 litres

How much heat would be absorbed by 2 litres of an ideal gas at 5 atm pressure if it expands isothermally into an evacuated flask of 5 litres

Grade:12th pass

1 Answers

Siddhant
11 Points
6 years ago
In the case of expansion of any gas, work is done by the system.Now we know that w=−pextΔV=−pext(Vf−Vi)where pext​ = external pressure of the system = 0(The given pressure of 10 atm in the question, is the pressure of the gas itself. But we need external pressure in the expression. The gas is expanding into vacuum which has no pressure. Thus external pressure = 0) Vf = 10 L Vi = 2 LThus work done by the system will be: w = -0×(10-2) = 0Thus no work is done.Also, heat absorbed (q) is a consequence of gaining temperature, but the system is working at constant temperature (isothermal condition).q = -wSo there will be no heat absorbed.

Think You Can Provide A Better Answer ?

Other Related Questions on Physical Chemistry

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More