Specific heat of a substance at m.pt. (or b.pt. or for isothermal process) and specific heat of ...

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Specific heat of a substance at m.pt. (or b.pt. or for isothermal process) and specific heat of a substance during adiabatic change respectively are :
(A) 0,0
(B) \( 0, \infty \)
(C) \( \infty, 0 \)
(D) \( \infty, \infty \)
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