Question

# A system absorbs $$600$$ J of heat and work equivalent to $$300$$ J on its surroundings. The change in internal energy is:

A
300J
B
400J
C
500J
D
600J

Solution

## The correct option is A $$300J$$$$\Delta U =$$ change in internal energy$$W=-300J$$(System)$$\Delta U =$$ q+W $$\Delta U = 600 J - 300 J = 300 J$$Thus, the change in internal energy is 300JHence, the correct option is $$A$$Chemistry

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