A system absorbs 50 kJ heat and does 20 kJ of work. What is the net change in the internal energy of the system ?

During a process, a system absorbs 710 kJ of heat and does 250 J of work. Calculate the change in the internal energy of the system.

A certain reaction is exothermic by 220kJ and does 10kJ of work. What is the change is the internal energy of the system at constant temperture?

A system absorbs 10 kJ of heat and does 4 kJ of work the internal energy

A system absorbs 10 kJ of heat and does 4 kJ of work. The internal energy of the system

A system absorbs 10 kJ of heat and does 4 kJ of work. The internal energy of the system

A system absorbs 10 kJ of heat and does 4 kJ of work. The internal energy of the system

A system absorbs 640 J heat and does work of 260 J, the change in internal energy of the system will be :