Question

Alls. 2100 J
3. A molten metal of mass 150 g is kept at its melting
point 800°C. When it is allowed to freeze at 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 capacity of metal is
200 J kg-1 K-, how much additional heat
energy will the metal give out in cooling to
- 50 °C ?​

Answer 1

Answer:

Specific heat capacity of metal is 200 J k g - 1 K - 1 . Change in temperature= 800 − (−50) = 850°C (or 850 K).