Can whole of work be converted into heat?

Can whole of heat be converted into work?

Can ethanol be converted into iodoethane by heating with NaI and conc. H_(2)SO_(4) ?

Can a given amount of mechanical energy be completely converted into heat ?

A and B can complete a work in 12 days and 18 days, respectively. A begins to do the work and they work alternately one at a time for 1 day each. The whole work will be completed in how many days?

In an X-ray tube if the electrons are accelerated through 140KV then anode current obtained is 30mA. If the whole energy of electrons is converted into heat then the rate of production of heat at anode will be

Can 10J of mechanical energy be converted to 10J of heat? Justify.

Chlorobenzene can be converted into phenol by heating it with excess of caustic soda at 613K, under pressure. This is known as ___________.

Can we convert heat completely into mechanical work in a cyclic process.