Question

An unknown mass of a certain solid, initially at 60⁰C, is heated at a uniform at a uniform rate. After 4.0 min the solid reaches its melting point of 80⁰C, and it remains at that temperature for 3.0 min until completely melted. After a further 6.0 min of heating, the resulting liquid is at 100⁰C. If the specific heat capacity of the substance in the solid state is 2.0 kJ/kg ⁰C, find the heat of fusion of the substance and its specific heat capacity in the liquid state.

Answer 1

23

Answer 2

walang sagot

Answer 3

54 kJ / kg - °c
c= 3.6