A system is given 300 calories of heat and it does 600 joules of work. How much does the internal energy of the system change in this process
(J = 4.18 joules/cal)
654 Joule
156.5 Joule
– 300 Joule
– 528.2 Joule
JΔQ=ΔU+ΔW,ΔU=JΔQ−ΔWΔU=4.18×300−600=654 Joule