1. A mass of 2 kg of water is at a temperature of 20°C and is heated to a temperature of 80°C.
If the specific heat capacity of water is 4200 cal/kg °C, determine the amount of heat required, stated in calories!
2. 2 kg of ice is heated until it melts according to the following graph!
If:
specific heat capacity of water = 4200 J/kg°C, specific heat capacity of ice = 2100 J/kg°C, heat of fusion of ice = 330,000 J/kg, heat of vaporization = 540 J/kg°C,
Calculate the heat required on the graph:
a. A-B b. B-C c. C-D d. A-D
3. A mass of 0.1 kg of water at 20°C is heated until it boils at 100°C. If the specific heat capacity of water is 4200 J/kg°C, then the amount of heat required is...
4. A 2 kg aluminum rod undergoes a temperature increase of 25°C. If the specific heat capacity of aluminum is 900 J/kg°C, then the amount of heat required for the process is...
5. A 4 kg iron with a temperature of 20°C is heated with 92000 J of heat. If the specific heat capacity of iron is 460 J/kg°C, then the temperature of the iron after heating is...
6. A hot piece of iron weighing 1 kg and at a temperature of 100°C is placed into a container containing 2 kg of water at 20°C. If the specific heat capacity of iron is 450 J/kg°C and the specific heat capacity of water is 4200 J/kg°C, then the final temperature of the mixture is..
