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The first law of thermodynamics is conserved with the conservation of  :


Options:
A .  number of mole
B .  energy
C .  temperaure
D .  number of molecules
Answer: Option B

The first law of thermodynamics is basically the law of conservation of energy . It states that if a system absorbs heat `Delta Q` and as a result its internal energy changes by  `Delta u` and the system does a work  `Delta W`

Therefore , according to this law

        `Delta Q = Delta u + Delta W`



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