Day 1 Heat Flow and Specific Heat

Introduction of Temperature 
 
This is the graph to show the relationship between Fahrenheit and Celsius.

What affects the thermal conductivity

This picture shows that those four possible factor that affect the thermal conductivity: Surface area, difference of temp, thickness, and material. 

Experiment one: can apparatus

This picture shows the equipment that we used in the experiment: A can which contained hot water was put into a mug that contained cold water.  

Can apparatus 

This graph is created by logger pro, representing the relationship between two different temperature.  Two lines meet at the end, reaching an equilibrium.
Although they do not look like linear functions, we will only take certain piece of each line to find out the slope. 

Data and calculations:

Experiment two: heat transfer as energy exchange

We put an immersion heater into a cup of water (230 ml), marked down the room temperature which is 23.6 Celsius degree, measured the heater's wattage whose power is 288 watts, and used logger pro to record the data.

Temperature vs. heat

This graph shows a linear relationship between temperature and heat.  As temperature increases, heat increases.  Slope, whose physical meaning is heat capacity, is 0.873 of this function.  Generally we should get 1 as the slope, but since our mass it not equal to one so our slope is explainable.  We also found out that heat capacity is a mass-independent value since it will not change as we add or halve the mass of water.

Short summary of the day
What we did on the first lab is to introduce us the measurement of temperature, find out the factors determine the thermal conductivity, observe the relationship between heat and temperature, and get to know the property of heat capacity.