Question

It is NOT possible to completely convert. A. heat into internal energy. B. mechanical energy into heat. C. internal energy into mechanical energy. D. internal energy into heat

Answer 1

It is not possible to completely convert : C. Internal energy into mechanical energy

Some of the energy would be loss in the process of Conversion

hope this helps

Answer 2

It is NOT possible to completely convert.nternal energy into mechanical energy. because energy is lost during conversion