Is it possible to convert internal energy into works?

Is it possible to convert internal energy into work or mechanical energy ?

Which law of the thermodyamics leads us to conclude that it is not possible to convert whole of heat into work continuously

How are internal energy and work related?

A given amount of heat cannot be completely converted into work. However it is possible to convert a given amount of work Completely into heat this apparently contradictory statement results from the

What we call a device for converting heat energy into work.

Define the term 'enthalpy'. What will happen to the internal energy if work is done by the system ?

State the relation between change in internal energy with work

A : During a cyclic process work done by the system is zero. R : Heat supplied to a system in the cyclic process converts into internal energy of the system.

A : During a cyclic process work done by the system is zero. R : Heat supplied to a system in the cyclic process converts into internal energy of the system.