Thermal Properties of Matter - Calorimetry Question with Solution | TestHub

Thermal Properties of MatterCalorimetryHeat Transfer and Phase ChangeMedium3 minCT50
Thermal Properties of MatterMediumsingle choice

A substance of mass M kg requires a power input of P watts to remain in the molten state at its melting point. When the power source is turned off. The sample completely solidifies in time t seconds. The specific latent heat of fusion of the substance is :

Options:

Answer:
B
Solution:

On switching off, latent heat ML is removed at power P for time t.

Thus ML=Pt and L=Pt/M.

Stream:JEESubject:Thermal Properties of MatterTopic:CalorimetrySubtopic:Heat Transfer and Phase Change
3mℹ️ Source: CT50

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