If "10" calorie of heat energy is added to a system and the system does "5" calorie of work on the surroundings,What is the energy change of the system?

If 500 calorie of heat energy are added to a system and the system does 350 calorie of work on the surroundings, what is the energy change of the system?

Calculate the changes in internal energy of a system if, 400 calorie of heat energy are added to the system and the system does 500 calories of work on the surroundings.

If 50 calories are added to a system and system does work of 30 calories on surroundings, the change in internal energy of system is

If 100 calorie of heat are added to the same system as in example 1 and a work of 50 calorie is done on the system, calculate the energy change of the system.

Delta U for a system that does 1000 cal of work on the surroundings when 200 cal of heat are absorbed by the system is ______ .

What is DeltaE for system that does 500 cal of work on surrounding and 300 cal of heat is absorbed by the system ?

If 2500 cal. of heat is added to a system while the system does work equivalent to 3500 cal by expanding against the surrounding atmosphere, the value of Delta U for the system is

If 2500 cal of heat is added to a system while the system does work equivalent to 3500 cal by expanding against the surrounding atmosphere, the value of Delta U for the system is ________ .