SGSITS interview questions

i had put my resume through college website. after few days, i got call from same college. when i had reached, they told me to wait ii waiting lounge. few minutes after i got call from inside to coming with documents in conference room. As i got permission to enter i had found three members panel inside. first hr head started asking general question i;e define youself, why you want switch. after that technical head started asking question with me, define second law of thermodynamics, kelvin plank and Clausius statement are same. what do you know about entropy. i replied, but he is not satisfied with me