Find the amount of work done to increase the engines ever developed operates between `2100 K and 700 K`. Its actual efficiency is `40%`. What percentage of its maximum possible efficiency is this?

One of the most efficient engines ever developed operated between 2100K and 700K. Its actual efficiency is 40%. What percentage of its maximum possible efficiency is this?

One of the most efficient engines ever developed operated between 2100K and 700K. Its actual efficiency is 40%. What percentage of its maximum possible efficiency is this?

One of the most efficient engines ever developed operates between 2100 K and 700 K. Its actual efficiency is 40%. What percentage of its maximum possible efficiency is this?

One of the most efficient engines ever developed operated between 2100 K and 700 K . Its actual efficiency is 40%. What percentage of its maximum possible efficiency in this ?

One of the most efficient engine even developed operates between 1800 K and 600 K, Its actual efficiency is 40%. What percentage of its maximum possible efficiency is this?

One of the most efficient engines ever developed operated between 2100 K and 700 K. Its actual efficiency is 40%. If its efficiency is N/5 fraction of maximum possible efficiency, then N is equal to

A Carnot engine operates between 200^(@)C and 20^(@)C . Its maximum possible efficiency is:

A Carnot engine operates between 200^(@)C and 20^(@)C . Its maximum possible efficiency is:

A Carnot engine works between 600K and 300K. The efficiency of the engine is

A Carnot engine works between 600K and 300K. The efficiency of the engine is