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CGP EDU Academic Team
Published on: August 14, 2026
In a process, 701 J of heat is absorbed by a system and 394 J of work is done by the system. What is the change in internal energy (in J) for the process?
Text Solution
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CHECK THE SOLUTION.
307.00
Given, q = + 701 J (heat is absorbed, heance q is positive.)
W = - 394 J (work is done by the system, hence W is negative.)
By first law of thermodynamics;
Internal energy change, 
U = q + w
= + 701 J + (-394J) = + 307J.
Hence, internal energy of the system increases by 307 J.
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