Question

An

engine burns its fuel at 750 C and the exhaust temperature is 350
C. What is the efficiency of the engine?

Answer 1

The efficiency of the engine is approximately 39.1%.

Step-by-step explanation:

The efficiency of an engine can be calculated using the formula:

Efficiency = (T hot - Tcold) / T hot

where T hot is the temperature of the hot reservoir (in Kelvin) and Tcold is the temperature of the cold reservoir (in Kelvin). To calculate the efficiency, we need to convert the temperatures from Celsius to Kelvin:

T hot = 750 + 273 = 1023K

Tcold = 350 + 273 = 623K

Substituting these values into the formula:

Efficiency = (1023 - 623) / 1023 = 0.391

Therefore, the efficiency of the engine is approximately 0.391, or 39.1%.