STANDARDChemistry-Thermodynamics
STANDARD Chemistry Isothermal Processes MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Two litres of an ideal gas at a pressure of 10 atm expands isothermally into a vacuum until its total volume is 10 litres. How much heat is absorbed and how much work is done in the expansion?
A
10 J, 10 J
B
8 J, 10 J
C
18 J, 0 J
D
0 J, 0 J
Correct Answer
Option D
Detailed Explanation
q = -w = Pₑₓ(10 - 2) = 0(8) = 0. For isothermal expansion in vacuum, Pₑₓ = 0.
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