Consider the change in the internal energy of a system 100 P

Consider the change in the internal energy of a system.

100% Part (a) What is the change in the internal energy, in joules, of a system that docs 4.725 times 10^5 J of work, while 2.75 times 10^6 J of heat is transferred into the system and 8.05 times 10^6 J of heat is transferred from the system to the environment?

Solution

delta U = delta Q - W

delta U = (8.05 - 2.75)*10⁶ - 4.725*10⁵ = 4.8275*10⁶ J