Heat transfer between two different metals

Heat Transfer as Energy Exchange

In this lab we are using an immersion heater to raise the temperature of water. The immersion heater we are using is 300 W. So, for 20 seconds we should be able to generate

The graph below shows the progress of the water being heated. We will pay more close attention to the more linear part of the graph for the next step.

 Here, we created a calculated column for Heat in order to obtain the graph of Heat vs Temperature graph below. The slope if this line represents the heat capacity of water.

Quantitative Thermal Conductivity

Finding a weighted average

In this problem, we were given a 50g mass at 5 degrees Celsius and a 200g mass at 30 degrees Celsius. We need to find the equilibrium temperature. To do this we take the weighted average as shown in the picture above. We get that the final equilibrium temperature will be 25 degrees Celsius.

Deriving an equation relating the Fahrenheit and Celsius temperature scales

Here, our goal was to come up with an equation that relates the Fahrenheit and Celsius temperature scales.

First we picked two points that corresponded to each other. We know the temperatures at which water freezes and boils in degrees Fahrenheit and degrees Celsius. Water freezes at 32 degrees Fahrenheit or 0 degrees Celsius and boils at 212 degrees Fahrenheit or 100 degrees Celsius. We plotted the two points (0,32) and (100,212). We then found the equation of the line as shown in the picture.