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) 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) September 8, 2021 Category: Cengage NEET by C.P Singh , Chapter 21 - Laws of Thermodynamics , Part 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related