Question

Please answer!

Answer 1

Answer: The work done by the system is 800 Joules.

Explanation:

Internal change in thermal energy of the system,$\Delta U$= 600 Joules

Energy added to the system the system,Q = 1400 Joules

Work done by the system can be calculated by using First law of thermodynamics:'

$\Delta U=Q-W$ (First law of thermodynamics)

$600 J=1400 J-W$

$W=Q-\Delta U=1400 J-600 J=800 J$

The work done by the system is 800 Joules.

Answer 2

I can confirm, your answer is 800J (Or 800 Joules)!

I just took the test and this was the correct answer :)