What was the final temperature of the copper and the water?
The final temperature (reached by both copper and water) is 38.7 °C.
Why do you think only a small ladle full of water is poured on the rocks at one time?
Why do you think only a small ladle-full of water is poured on the rocks at one time? The heat of vaporization of water is very high. With small amounts of water you can vaporize the water as it hits the rocks into steam.
How do you do a calorimetry lab?
Place the thermometer in the calorimeter cup and record the temperature for 3 readings at 30 second intervals. Lift the lid of the calorimeter and drop the pieces of magnesium in, mixing continuously. Record the temperature every 30 seconds until 10 minutes have elapsed.
What is the final temperature of the calorimeter?
The final temperature of the calorimeter is 59.0 °C. Now that we know the heat capacity of our calorimeter we can use our calorimeter to determine the amount of heat a reaction releases.
What was the effect of changing the initial temperature of the copper?
what was the effect of changing the initial temp of the copper? the rock has a greater amount of heat energy which transfers to water causing vaporization. why fo you think only a small ladle- full of water is poured on the rocks at one time? -the calorimeter shows changes in water temp when set to certain substances.
How does mass affect temperature?
Mass of the substance has no effect on specific heat, as it is already a quantity expressed per unit mass.
What is the calorimeter Lab?
In the laboratory, heat flow is measured in an apparatus called a calorimeter. A calorimeter is a device used to determine heat flow during a chemical or physical change. A doubled Styrofoam cup fitted with a cover in which a hole is bored to accommodate a thermometer can serve well as a calorimeter (See Figure 7.1.)
How do you calculate temperature change in a calorimeter?
The heat gained by the calorimeter, q cal, is determined from the formula, qcal = Ccal×Δt, where Δt is the change in temperature undergone by the mixture.
How do you calculate Q?
To find the reaction quotient Q, multiply the activities for the species of the products and divide by the activities of the reagents, raising each one of these values to the power of the corresponding stoichiometric coefficient.