Specific Heat Capacity Worksheet 2 Here are the specific heat capacity values of four different metals and water: metal specific heat capacity aluminium 910 J/kg C brass 380 J/kg C copper 390 J/kg C iron 460 J/kg C water 4185 J/kg C 1. How much energy must be transferred into 5 kg of copper to raise its temperature by 1 C? ……………………………………………………………………………………………………………………………………………………………………………… 2. How much energy must be transferred into 1,000 g of copper to raise its temperature by 5 K? ……………………………………………………………………………………………………………………………………………………………………………… 3. What do you notice about the answers to parts a and b? Explain your answer. ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… 4. How much energy must be transferred into mixture of 1kg of copper and 1kg of brass to raise its temperature by 1 K? ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… 5. If I put 1kg of copper into 10kg of water, both of which are at 20 C, how much energy do I require to increase the temperature of the water and the copper by 10 C? ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… 6. If I put 1 kg of copper at 20 C into 10 kg of hot water at 90 C; a. What will happen to the temperature of the water? ……………………………………………………………………………………………………………………………………………………………………………… b. What will happen to the temperature of the copper? ……………………………………………………………………………………………………………………………………………………………………………… c. What can you say about the heat transferred between the copper and the water, and the heat transferred between the water and copper? ……………………………………………………………………………………………………………………………………………………………………………… Specific Heat Capacity Worksheet 2 ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… d. Sketch a graph of the temperatures of the water and the copper against time, assuming that the beaker in which the water and copper sit in is perfectly insulated. e. Sketch a graph of the temperatures of the water and the copper against time, assuming that the beaker in which the water and copper sit in is not perfectly insulated, and room temperature is 20 C. 7. Using the data in question 6, calculate the equilibrium temperature, assuming that the beaker is perfectly insulated. ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… Specific Heat Capacity Worksheet 2 8. Imagine you were given a sample of each metal, but didn’t know any properties (such as visual appearance, density etc) of the metal other than it’s specific heat capacity. Describe an experimental procedure in which you would be able to determine which metal is which? You should make a note of what apparatus you need, what measurements you would need to make etc. ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………… ………………………………………………………………………………………………………………………………………………………………………………
