In a Diesel engine, atmospheric air is quickly compressed to about 1/20 of its original volume. Estimate the temperature of the air after compression, and explain why a Diesel engine does not require spark plugs.
Step 1 of 3
A diesel engine,compresses air of volume at atmospheric pressure and temperature which contains a diatomic molecules, hence it has 5 degrees of freedom (f=5=3 translational and 2 rotational) to a final volume and temperature of and respectively. By considering the process to be adiabatic,we need to estimate the final temperature of gas after compression .
Degrees of freedom, f=5
Final temperature, =?