Free points cuz why not

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?

Which of the following forces require physical contact? tension air resistance friction magnetic force applied force

Robin is swinging back and forth from a trapeze. in which of the following situations is his kinetic energy being transformed into potential energy