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Prove that irreverible isothermal expansion of an ideal gas increases the entropy of the universe??? Its chem 2nd sem question... from thermodynamics part 2

How can I convert CGPA into percentage?

i got a 4.74 sgpa in my first sem exam with 3 paper back ... if i clear my back papers ,will I be promoted to the second year ?

I am a student of first year. I got a suppli in Mechanics in my first sem only. Is there any way i can review my marks?? If it is then please let me know otherwise can u please tell me the procedure for sitting for supplimentary exam. I mean do I have to sit for my supplimentary exam in the second sem or will it take please later?? Plzz inform, its urgent!! You may sent me a mail regarding the procedure for sitting in supplimentary exam My email id is

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