Bell Work 1 / Kinetic Theory of Matter 1. What is the definition of The Kinetic Theory of Matter? 2. Draw and define the following Solid Liquid Gas Definition
each leg on the warming curve. 2. Bellwork 2 / Warming Curve 1. Label each leg on the warming curve. 2. Describe the change in Kinetic Energy and Potential Energy as you go from Leg C to Leg D. 3. If you have a 4.89 g sample at - 11.2 C. How much energy would be required to heat the sampl e to 15.5 C?
Bell Work 3 / Specific Heat
Bell Work 3 / Specific Heat You must first determine the specific heat of each Metal Sample. Zinc Copper Aluminum Cp=0.338 Cp=0.385 Cp=0.897 Remember, the lower the Cp the faster it will heat up and cool down. Zinc will be hottest Aluminum will be coolest
Bell Work 4 / Specific Heat Problem 1. A piece of unknown metal with a mass 14.9 g is heated to 100.0 C and dropped into 75.0 g of water at 20.0 C. The final temperature of the system is 28.5 C. What is the specific heat of the metal
Bell Work 5 / Specific Heat You place 100.0 g of water in a coffee - cup calorimeter and the temperature of the water is 22.3°C. A 45.9 g piece of silver metal is heated to 100.0°C and added to the water in the calorimeter. The equilibrium temperature is 2 7.3 C. What is the specific heat of the metal?
1. Hw much energy will e needed to raise the temp from 88 C to 114 Bell Work 6 / q Problem 1. Hw much energy will e needed to raise the temp from 88 C to 114 C if you have a 6.92g sample of water? First, Draw the warming curve for water and include the information. II. Calculations 1. 88 to 100 (q=cp m T) 2. energy to boil (q=mHv) 3. 100 to 114 (q= cp m T) Finally, add together for total energy
1. Hw much energy will e needed to raise the temp from 88 C to 114 Bell Work 6 / q Problem 1. Hw much energy will e needed to raise the temp from 88 C to 114 C if you have a 6.92g sample of water? First, Draw the warming curve for water and include the information. II. Calculations 1. 88 to 100 (q=cp m T) 2. energy to boil (q=mHv) 3. 100 to 114 (q= cp m T) Finally, add together for total energy
Bell Work 7 / Specific Heat Problem When 80.0 grams of a certain metal at 90.0 °C was mixed with 100.0 grams of water at 30.0 °C, the final equilibrium temperature of the mixture was 36.0 °C. What is the specific heat of the metal?
Bell Work 8 / Endo Exo Thermic Is the graph an endothermic or exothermic reaction? What is the activation energy of this graph? Determine the heat of the Reaction? 4. Draw in a dotted line to represent what the graph would look like if you added a catalyst.