Heat given to a system is 35 joules and work done by the system is 15 joules. The change in the internal energy of the system will be

Heat given to a system is 35 joules and work done by the system is 15

1.	Heat given to a system is 35 joules and work done by the system is 15 joules. The change in the internal energy of the system will be
Answer» - 50 J 20J 30J 50J Answer :B