:
calorie, calorimeter, joule, specific heat capacity Prior Knowledge Questions
(Do these BEFORE using the Gizmo
.) 1.
The Latin word
calor
means “heat,” and
meter
comes from the Greek word meaning “to measure.” What do you think a
calorimeter
does?
I think a calorimeter measures the amount of heat in a liquid. 2.
Where have you heard the word
calorie
before? What do you think a calorie is?
I’ve heard the word calorie from food nutrition labels. I think a calorie in this context has something to do with the temperature or heat of a substance. Gizmo Warm-up A calorimeter is an insulated container filled with a liquid, usually water. When a hot object is placed in the calorimeter, heat energy is transferred from the object to the water and the water heats up. Calorimeters can be used to find a substance’s
specific heat capacity
. You will use the
Calorimetry Lab
Gizmo™ to determine the specific heat capacities of various substances. 1.
On the SIMULATION pane, select
Copper
. Use the slider to set its
Mass
to 200 g. Set the Water mass
to 200 g. Check that the
Water temp
is set to 30.0 °C and the copper’s
Temp is 90 °C. Select the GRAPH tab, and click
Play
(
). A.
What was the
Final temperature
of the copper and the water?
34.96 degrees C B.
How much did the temperature of the copper change?
55.04 degrees C C.
How much did the temperature of the water change?
4.96 degrees C CALORIMETRY LAB VOCABULARY 2.
Specific heat capacity can be described as a substance’s resistance to temperature changes. Which substance has a greater specific heat capacity, copper or water? Explain. Water has a greater specific heat capacity because the temperature of the water only slightly changed.