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Energy and Its Sources

A certain rea...

Question

A certain reaction is exothermic by 220 kJ and does 10kJ of work. What is the change in the internal energy of system at constant temperature?

A

+230 kJ

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B

-230 kJ

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C

-210 kJ

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D

+210 kJ

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Solution

The correct option is B -230 kJ

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