00:01
Okay, well, in this problem 26, we have to say, how's the thermal efficiency of the ideal auto cycle change with the compression rate? compression ratio and the specific heat of this engine.
00:20
Well, first of all, if we look at the book, we can see that the efficiency of the auto cycle can be written as, let's put here.
00:28
The efficiency is going to be 1 minus 1 divided by the compression ratio to the power of k minus 1, where k, let's put here, k is the specific heat of the gas, and this r and here is the compression ratio.
01:01
So if we look closer to this equation here, we can see that the only way that, let's say, if the compression ratio increases, sorry, let's see, if the compression ratio increases and also the specific heat increases, the efficiency also increases...