Sapling Learning A system does 541 kJ of work and loses 266

Sapling Learning A system does 541 kJ of work, and loses 266 kJ of heat to the surroundings What is the change in internal energy of the system? Number kJ

Solution

The heat gain by the system, q = 266 kJ.
The work done on the system , w = 541 kJ.

The First Law of Thermodynamics state that

U=q+w

= - 266- 541 kJ

= - 807 kj