Saved Bookmarks
| 1. |
A diatomic ideal gas is used in a Carnot engine as the working substance. If during the adiabatic expansion part of the cycle, the volume of the gas increases from V to 32 V, the efficiency of the engine is: |
|
Answer» `0.25` `TV^(gamma-1)=` constant `therefore (T_(2))/(T_(1))=((V_(1))/(V_(2)))^(gamma-1)=((1)/(32))^((7)/(5)-1)=((1)/(32))^(2//5)=(1)/(4)` `therefore eta =1-(1)/(4)=(3)/(4)=0.75` So, correct CHOICES are (c ). |
|