This lab began with the definitions of the basic units of measurement. Conversions between Fahrenheit and Celsius were made. Below shown is the visual representation of such.
Next was a demonstration of blowing bubbles, which when filled with air, dropped. When methane was used, however, they floated due to the buoyancy overcoming the weight of the soap. Professor Mason went on to apply a torch to the methane bubbles, which resulted in an upward moving fireball. The takeaway was that the original momentum and heat both pushed the flames upward.A third experiment was done using the Logger Pro program to visually graph the change in temperature of two containers in contact with each other which were holding water at different temperatures. The graphs had a rate of change inversely proportional to the mass of their respective substances.
An atomic visualization was made representing the transfer of heat (kinetic energy) from the hot (right) side of a container, through the can, and onto the left (cool) side.
Various ways to cool substances were brainstormed.
The transfer of heat through substances was mathematically explained throught the equation,
dQ/dt = kA(ΔT)/L
A final experiment was made to compare Heat v Temperature and Heat per Unit Mass v Temperature, both showing a linear relationship which has slope proportional to mass heated. This slope results in the specific heat of the substance.
No comments:
Post a Comment