Two objects will exchange heat as long as… (2 things)

Look at the milk and the o.j. in the cooler. They are not in contact, but still exchange heat. How?

The “zeroth” law of thermodynamics is a common sense matter. Our text uses three items to explain it. Write YOUR OWN understanding of the law.

What is a system?

Give three examples of systems

1

2

3

In what two ways can a thermodynamic system interact with its environment?

Either define or explain the difference between TEMPERATURE, HEAT, and INTERNAL ENERGY

On what idea is the first law of thermodynamics based?

Q=W+DU In words, what does this equation say?

What does it mean if Q,W, U are positive or negative?

(make a table with Q,W,U on top, and +, - on the side)

Why is it so hard to measure all the heat changes in a system?

What does adiabatic mean AND how does it change our equation from #9?

Same as previous question, but use isothermal.

Same question, but use isochoric.

Equation 11.2 says that the change in work equals pressure times change in volume. How did they arrive at this equation?

In example 11.1, two new equations are derived. Write them below and label what the variables stand for.

Do these problems. I’ll tell you which equations to use.

11.1 DU=Q-W

11.2 same

11.4 same

11.5 math is optional here

11.7 DU=Q=mcDT

11.8 DU=Q-(P*DV)