## SNIIX18 Group Title A heat engine has a hot reservoir of 490°C and a cold reservoir of 210°C. What is the efficiency of the engine? A. 62.3% B. 52.6% C. 57.1% D. 48.2% one year ago one year ago

1. koushik_ksv Group Title

I can give you the maximum possible efficiency of the engine.

2. SNIIX18 Group Title

What is it lol :)

3. koushik_ksv Group Title

Considering a carnot's cycle, $\eta = 1- T _{2}/T _{1}$ where n - efficiency T(2)- temperature of cold reservoir T(1)- of hot reservoir

4. koushik_ksv Group Title

If you put values, you get close to C.

5. SNIIX18 Group Title

yes lol thats what i got :) thank you do you think you can help me with my physics test ?

6. koushik_ksv Group Title

Yeah, I will try my best.

7. SNIIX18 Group Title

okay hold up ill show you the rest of the questions