Work, Energy, and Heat

This picture is a review of the quiz we took at the start of class.

The above 3 pictures show Professor Mason submerging a beaker in water of different temperatures. The beaker of air is connected to a glass tubing which shows a change in volume.

Work equals the integral of Pressure times the change in volume. The kinetic energy increases with the increase in temperature which causes the volume to increase.

In this picture we we show that Work is the change of energy in the system. Heat in the system is equal to internal energy which is the change of internal energy which is equal to the heat in the system minus the Work. We also tried describing this to a child, and we didn't do too well, but Professor Mason gave us an example of how eating candy can make children hyper.

The applet above shows how molecules react when there is a change in Kinetic Energy. It also shows that the pressure and temperature are reliant upon the velocity.

In this picture we have real life examples of a change in energy being reliant upon either heat alone or work alone. A hot steak sitting on a plate was our example of a change in internal energy relying only on heat. A balloon losing air over time was our example of work causing the change in energy.

The picture above shows how we found the Work done by first finding the change in volume of a cube in a 30 degree Celcius change in temperature.

In the picture above we derive a Force equation based on pressure and a change in time.

Above we derived a function of pressure in terms of volume.

We found that the root mean squared velocity is equal to the root of 3 times the Boltzmann constant times change in temperature over mass.

The above picture shows the details on an isothermal process and an adulate process. 

The above video and white board picture is the experiment we conducted in class. It is an example of an adulate process since it occurs quickly and there is no heat energy.

Here are the questions regarding the last experiment in the lab manual, our calculations in class match up with the ones in the book.