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Question
A system performs 101.3 J of work on its surrounding and absorbs 15 KJ of heat from surroundings. The change in internal energy of the system is:
A system performs 101.3 J of work on its surrounding and absorbs 15 KJ of heat from surroundings. The change in internal energy of the system is:
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Solution
The correct option is B 14898.7 J
By 1st law of Thermodynamics-
E=Q+W
Where Q is positive if system absorbs heat and negative if system dissipates heat.
W is positive if work is done on the system and negative if work is done by the system.
E=Q+W
E=(15000−101.3) J
E=14898.7 J
By 1st law of Thermodynamics-
E=Q+W
Where Q is positive if system absorbs heat and negative if system dissipates heat.
W is positive if work is done on the system and negative if work is done by the system.
E=Q+W
E=(15000−101.3) J
E=14898.7 J
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