842 J of works was done for a gas to be compressed. At the same time, it releases 451 J of heat. What is the change in the energy of the system?

Melina Barber

Melina Barber

Answered question

2022-09-25

842 J of works was done for a gas to be compressed. At the same time, it releases 451 J of heat. What is the change in the energy of the system?

Answer & Explanation

Claire Larson

Claire Larson

Beginner2022-09-26Added 10 answers

Given ->
Work = +842 J ( work done on the system)
Q = -451 J ( heat released)
According to first law of thermodynamics->
E = Q + W E = 451 + 842 E = + 391   J
Change in energy = 391 J

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