Physics - Thermodynamics - Laws of thermodynamics - Thermodynamics Problems

8 problems. P1: 'A system absorbs 500J of heat and does 200J of work. Change in internal energy = ___ J' (300). P2: 'A gas expands doing 150J of work with no heat exchange (adiabatic). ΔU = ___ J' (-150, system loses internal energy). P3: 'A Carnot engine operates between 600K and 300K. Maximum effi