Physics - Heat & Thermo Question with Solution | TestHub
PhysicsHeat & ThermoCalorimetryMedium2 minQB
PhysicsMediumsingle choice
Statement-1: At a steelworks, molten iron is heated to to remove impurities. It is accurate to say that molten iron contains more heat than solid iron.
Statement-2: Solid iron at melting point needs to be supplied heat corresponding to its latent heat of fusion for phase change.
Options:
Answer:
D
Solution:
Heat is energy in transit. A body has internal energy, not "heat". So statement-1 is false.
To melt solid iron at its melting point, heat equal to the latent heat must be supplied:
Statement-2 is true.
Stream:JEESubject:PhysicsTopic:Heat & ThermoSubtopic:Calorimetry
⏱ 2mℹ️ Source: QB
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