A Carnot engine takes in heat from a reservoir of heat at `427^(@)C`. How many calories of heat must it take from the reservoir in order to procuce useful mechanical work at the rate of `357 watt`?

A reversible engine takes in heat from a reservoir of heat at 527^(@)C , and gives out to the sink at 127^(@)C How many calories per second must it take from the reservoir in order to produce useful mechanical work at the rate of 750 wat t ? 1 cal. = 4.2J .

A Carnot engine takes in heat from a reservoir of heat at 427^circC and gives out heat to sink at 77^circC . How many clories per second must it take from the reservoir in order to produce useful mechanical work at the rate of 357 W?

A reversible engine takes heat from a reservoir at 527^(@)C and gives out to the sink at 127^(@)C. The engine is required to perform useful mechanical work at the rate of 750 watt. The efficiency of the engine is

A reversible engine takes heat from a reservoir at 527^(@)C and gives out to the sink at 127^(@)C. The engine is required to perform useful mechanical work at the rate of 750 watt. The efficiency of the engine is

A carnot engine takes heat from a reservoir at 627^(@)C and rejects heat to a sink at 27^(@)C . Its efficiency is

A Cannot engine takes heat from a reservoir at 627^(@)C and rejects heat to sink at 27^(@)C . Its efficiency will be

A Carnot engine takes in 1000 k cal of heat from a reservoir at 627^@C and exhausts heat to sink at 27^@C . What is the efficiency?

A carnot engine takes in 3000 kcal of heat from a reservoir at 627°C and gives it to a sink at 27°C. The work done by the engine is