*/*_Which of the following is the correct statement of the second law of thermodynamics??

There is a definite amount of mechanical energy, which can be obtained from a given quantity of heat energy

It is impossible to transfer heat from a body at a lower temperature to a higher temperature, without the aid of an external source

It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work

*/*_Which of the following is the correct statement of the second law

1.	/_Which of the following is the correct statement of the second law of thermodynamics??
A.	There is a definite amount of mechanical energy, which can be obtained from a given quantity of heat energy
B.	It is impossible to transfer heat from a body at a lower temperature to a higher temperature, without the aid of an external source
C.	It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work
D.	All of the above
Answer» E.