Chemistry, 25.08.2021 14:00 jacobiroberts18
17.A certain electric motor produced 15KJ of energy each second as
mechanical work and lost 2KJ as heat to the surrounding each second
What is the change in the internal energy of the motor each second?
a. 17kJ b. -13kJ C. -17KJ d. 13KJ
Answer
W= -15kJ(work done by the system)
By means produce
Q= -2kJ (heat lost/escape)
Change U= Q + W
= -2 - 15= -17kJ
Answers: 1
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17.A certain electric motor produced 15KJ of energy each second as
mechanical work and lost 2KJ as...
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