Published by:
CGP EDU Academic Team
Published on: August 21, 2026
A sample of 0,1 g of water at 100°C and normal pressure (1.013 X 10 5 Nm -2 ) requires 54 cal of heat energy to convert to steam at 100°C C, If the volume of the steam produced is 167.1 CC, the change in internal energy of the sample, is -
Text Solution
Verified by ExpertsThe correct answer is:
According to first law of thermodynamics
Q = 
U + 
W
U= 
Q- 
W
U = 54x4.2-P( 
V)
54 x 4.2 - [1,013 x 10 5 x 167.1 x 10 -6 )
208. 7 Joule
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