Please help explain how to solve the following questions:

Problem #1 A nuclear reactor generates 1,000 MW of electric energy while producing a "waste heat" at a rate of 2,000 MW and this heat must be removed from the reactor, hence - as commonly done with nuclear reactors - it is sited next to a huge body of water. The intake water temperature is 18"C and state regulations limit the temperature of the output water to 30"C to not to harm aquatic organisms. What mass of water must be pumped through the reactor per minute?Problem #2 A container holds 4 gram of Neon at a pressure of 5.0 atm and a temperature of 15 C. How much work must be done on the gas to reduce the volume by 50% in a./ a constant pressure process? b./ a constant-temperature process?Problem #3 On a very cold day you are outside in you in your fiber-filled jacket. The thickness of the jacket is 2.5 cm and covers a 1.1 m area of your body. The purpose of the fiber-filled jacket is to trap a layer of air and it is really the air layer that provides the insulation. If your skin temperature is 34 "C while the air temperature is -20 "C, at what rate is the heat being conducted through the jacket from your body