If the amount of heat given to a system is 35 J and the amount of work done by the system is -15J and the amount of work done by the system is -15J, then the change in the internal energy of the system is?
(a) -50J
(b) 20J
(c) 30
(d) 50J
I had been asked this question in class test.
My enquiry is from Specific Heat and Thermodynamics topic in division Kinetic Theory of Gases of Engineering Physics I