When latent heat of melting provided to ice at \( 0^{\circ} \mathrm{C} \) (A) K.E. of the molecu...

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When latent heat of melting provided to ice at \( 0^{\circ} \mathrm{C} \)
(A) K.E. of the molecules remains constant, P.E of molecules increases
(B) P.E of the molecules remains constant, K.E of molecules increases
(C) Both K.E. and P.E. of molecules remains constant
(D) Both K.E. and P.E. of molecules increase
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