Question

answer 9th ,10th,11th,12th

Answer 1

9- in ic engine when hot burn gases are in contact with fuel then expansion are found
10- it is temp control process
11- it is a process in which heat transfer from high temp body to low temp body
12- it a process depend on the environmental condition and prcticle moving of object the atm temp is upto 34 degree celcious



hope it will help u