In a heat engine, if 700 J of heat enters the system, and the piston does 400 J of work, what is the final internal (thermal) energy of the system if the initial energy is 1,200?

3 answers

1,500
In the first law of thermodynamics, ΔE=Q−W , what does Q stand for?
q stands for heat
Similar Questions
    1. answers icon 5 answers
    1. answers icon 1 answer
  1. Why is it impossible for a heat engine to be 100% efficient?A) Work cannot be done on a heat engine. B) Some heat is always lost
    1. answers icon 1 answer
  2. Why is it impossible for a heat engine to be 100% efficient?a. Entropy always decreases in a heat engine b. Work cannot be done
    1. answers icon 1 answer
more similar questions