Lab on Matter
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I. Introduction
A. Purpose: the purpose of this experiment was to determine if the distance between matter effects the time it takes for the matter to reach thermal equilibrium.
B. Hypothesis: If the distance between the matter is decreased then the time it takes for the matter to reach thermal equilibrium will decrease.
C. Science concepts: Temperature- measure of the motion of molecules
Thermal equilibrium- when two pieces of matter are the same temperature
Kinetic energy- energy of motion
Heat- energy that flows from matter of a higher temperature to matter of a lower temperature
In the experiment the time it took for matter to reach thermal equilibrium was measured. The temperature of the water was measured every thirty seconds. The heat was transferred from the hot water, into the air, then to the cold water. When the water reached thermal equilibrium the average kinetic energy per molecule was the same for all the water.
II Procedure:
The materials used were-
125ml flask
200ml cold water
200ml beaker
2 lab probes
125ml hot water
logger pro
first the lab probes were plugged into the lab pro
the lab pro was connected to the USB port
the computer was turned on and logger pro was opened
the flask was filled with 125ml of hot water
the beaker was filled with 200ml of cold water
the flask and beaker were placed 20cm apart
the temperature was measured every 30 seconds until the hot and cold water reached thermal equilibrium
III. Results and Conclusions
A. Experimental Data: The results of the experiment indicate that the farther apart the matter is the longer it takes to reach thermal equilibrium. The