Question

calculate the efficiency of an engine working between steam point and ice point. can you design an engine of 100% efficiency? ​

Answer 1

Answer:26.79% efficient

Explanation:

Assuming you have this question for Carnot cycle/engine,

the formula for calculating efficiency of a carnot engine is

=> Efficiency = {1- (T1/T2)}*100

Where T1 is temperature of cold body and T2 is temperature for hot body(both in kelvin).

Here cold temperature T1 is 0°C = 273.15K

And hot temperature T2 is 100°C = 373.15K

Thus efficiency = {1-(273.15/373.15)}*100

=> 0.267988*100

=> 26.7988%

The efficiency for this engine is 26.79%

No a carnot cycle/engine can never be 100% efficient as to be 100% efficient, the sink temperature should be 0K to infinite which are not possible to achieve.

Answer 2

Answer:

Explanation:n=1- Q1/Q2

where Q2=0 a d Q1= INFINITY

Hence it is impossible to design a heat engine with 100% efficiency