posted by Yash .
Consider two closed systems A and B. System A contains 3000 kJ of thermal energy at 20°C, whereas system B contains 200 kJ of thermal energy at 50°C. Now the systems are brought into contact with each other. Determine the direction of any heat transfer between the two systems
Heat always flows from the hotter body to the colder one, regardless of total energy content. That is one consequences of the Second Law of Thermodynamics