Astone is held at a height h above the ground. a second stone with four times the mass of the first one is held at the same height. the gravitational potential energy of the second stone compared to that of the first stone is

If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.