- Q4 20 Marks Heat Is Supplied At A Constant Rate To 0 550 Kg Of Ice At 15 0 C In A Very Light Container Specific Hea 1 (37.66 KiB) Viewed 73 times
of ice at -15.0°C in a very light container. Specific heat capacity
of ice: 2.01 103 J.(kg.K) -1 . The ice starts to melt after 20.8
minutes. (a) Find the rate of heat received by the ice (in
J/minute). (b) Knowing that after 250.8 minutes from the time when
the heating is first started, the temperature begin to rise above
0.0°C. What is the latent heat of fusion of ice? (c) Plot a diagram
showing the change of temperature as a function of the time.
Explain clearly each stage of all the process.
Q4. (20 marks) Heat is supplied at a constant rate to 0.550 kg of ice at -15.0°C in a very light container. Specific heat capacity of ice: 2.01 x 10° J.(kg.K)!. The ice starts to melt after 20.8 minutes. (a) Find the rate of heat received by the ice (in J/minute). (b) Knowing that after 250.8 minutes from the time when the heating is first started, the temperature begin to rise above 0.0°C. What is the latent heat of fusion of ice? (c) Plot a diagram showing the change of temperature as a function of the time. Explain clearly each stage of all the process.