Heat given to a system is 35 joules and workdone 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 workdone by the system is 15 j

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