Refrigerators work according to the Clausius statement of the second law of thermodynamic (Figure 1) that states that it is impossible for heat to move from a cold reservoir to a hot reservoir without work being done to the system. A basic schematic of a typical refrigerator (Figure 2) illustrates this.From Valve 1 to Valve 2 (red; heat reservoir), the refrigerant is in a liquid form and releases the heat from the inside of the refrigerator to the outside (ie the kitchen). At valve 2, the expansion valve, the refrigerant is changed from a liquid to a vapor and pushed back inside the refrigerator. From valve 2 to the Compressor (blue, cold reservoir) the refrigerant, in vapor form, absorbs energy (ie. heat inside the refrigerator). At the compressor, work is done to the refrigerant to change it from a vapor to a liquid. The refrigerant is then pushed out of the refrigerator towards valve 1 and the process starts over.
Hello all! I’m Sarah Larson, a senior Chemistry Major with minors in Human Biology and Dance. I currently work on campus as a Student Ambassador and as a Lab Assistant. When I’m not busy with work and school (which is very rare) I spend most of my time dancing either at Ballroom Club or in the studio.
Hi, I’m Nicole. I’m looking forward to graduating in December. My major is Environmental Chemistry and my minors are Environmental Science and French.
I am currently a Senior. I am a human biology major and a chemistry major as well. I have 2 kids (a three month old and a 3 year old). I work full time and also attend collage full time. Squeezed in-between all this I try to spend as much time as possible with my family.
So we are Team D.