In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added

Answer : The final energy of the system if the initial energy was 2000 J is, 3500 J

Solution :

(1) The equation used is,

where,

= final internal energy

= initial internal energy

q = heat energy

w = work done

(2) The known variables are, q, w and

initial internal energy = = 2000 J

heat energy = q = 1000 J

work done = w = 500 J

(3) Now plug the numbers into the equation, we get

(4) By solving the terms, we get

(5) Therefore, the final energy of the system if the initial energy was 2000 J is, 3500 J

Nonnumeric, or conceptual problems, differ from numeric problems in a sense that solutions to conceptual problems do not involve or need calculations. It just need your knowledge on that specific subject and you just have to analyze the question and understand it to answer correctly.