Chp 1 In-Class Exercise #1
Name: _____________
1. What are the specific heats for the following:
a. Ice: ________
b. Water: _________
c. Steam: __________
2. How does heat flow?
3. Which heat causes a change in temperature, but not a change in state?
_____________________
4.
Which heat causes a change in state, but not a change in temperature?
_____________________
5.
You have 15 Lbs of ice at 9°F and want to convert that to steam at 252°F. How many
Btu’s will it take?
6. You have 1,100 lbs of ice at 32°F, how many Btus will it take to convert it to water at
162°F?
7. What does ASHRAE standard 55 reference?
8. List the values that you can read off of the psychrometric chart. (8pts)
a. _____________
b. _____________
c. _____________
d. _____________
e. _____________
f. _____________
g. _____________
h. _____________
9. You have measured the air properties in a room with the following results. Answer the
values of those results based off of the items listed in Question 7. The results were
___°DB temp, and ___°F WB temperature. Chart them on the psychrometric chart and
save it with this assignment.
a. _____________
b. _____________
c. _____________
d. _____________
e. _____________
f. _____________
g. _____________
h. _____________
10. What is the specific density of the air in the room?
11. How many pounds of air is in the room?
12. How many pounds of moisture is in the air that is in the room?