3. A molten metal of mass 150 g is kept at its melting point 800°C. When it is allowed to freeze at thesame temperature, it gives out 75,000 J of heatenergy.(a) What is the specific latent heat of the metal ?(b) If the specific heat capacity of metal is200 J kg-1 K-1, how much additional heatenergy will the metal give out in cooling to-50 °C ?

3. A molten metal of mass 150 g is kept at its melting point 800°C.

1.	3. A molten metal of mass 150 g is kept at its melting point 800°C. When it is allowed to freeze at thesame temperature, it gives out 75,000 J of heatenergy.(a) What is the specific latent heat of the metal ?(b) If the specific heat capacity of metal is200 J kg-1 K-1, how much additional heatenergy will the metal give out in cooling to-50 °C ?
Answer» the same TEMPERATURE, it GIVES out 75,000 J of HEAT energy. (a) What is the SPECIFIC latent heat of the metal? (b) If the specific heat

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