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Question

Physics Question on thermal properties of matter

In SI, the unit of latent heat is

A

J kg K J\, kg\, K

B

J kg−1J\,kg^{-1}

C

J K−1J\,K^{-1}

D

none of the above.

Answer

J kg−1J\,kg^{-1}

Explanation

Solution

As Q = m ⊥ ∴m \, \bot \, \therefore L = Qm ∴\frac{Q}{m} \, \therefore unit of latest heat is J Kg−1^{-1}