A system releases 15Kj of energy as heat and does 10 Kj of work on surroudings, What is change in internal energy ?

In a particular reaction the system absorbs 12kJ of heat and does 3kJ of work on its surroundings. What are changes in internal energy and enthalpy of system?

A system absorbs 6 kJ of heat and does 1.5 kJ of work on its surroundings. The charge in internal energy is ………

A system releases 125 kj of heat while 104 kj of work done on the system. Calculate the change in internal energy.

A system releases 100 kJ of heat while 80 kJ of work is done on the system. Calculate the change in internal energy.

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

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

A system loses 120 ) of heat and does 80 J of work. Calculate the change in the internal energy of the system.

A system gives out 30 J of heat and does 75 J of work. What is the internal energy change?