For the process to occur under adiabatic conditions, the correct condition is:
Question:

For the process to occur under adiabatic conditions, the correct condition is:

(i) $\Delta T=0$

(ii) $\Delta p=0$

(iii) $q=0$

(iv) $w=0$

Solution:

A system is said to be under adiabatic conditions if there is no exchange of heat between the system and its surroundings. Hence, under adiabatic conditions, = 0.

Therefore, alternative (iii) is correct.