Using the Qwizdom Remotes

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Using the Qwizdom Remotes
1. Press and hold the MENU button to turn ON the remote.
The double-arrow key is the “send” key.
1. Session ID: 104884, press “send” key
2. User ID: Enter your Augustana ID, press “send” key
3. The remote display will say QUIZDOM if you are logged in.
4. Answer the question and press the “send” key to send it.
If this does not work, press MENU and use the left and
right arrow keys to find and change the Session ID and
User ID.
5. The remote will turn OFF when the PowerPoint slides end.
Or, you can turn OFF the remote by holding down the
MENU button for about 2 seconds.
1. The temperature changes from 35°F during
the night to 75°F during the day. What is the
temperature change on the Celsius scale?
A.
B.
C.
D.
72 C°
40 C°
32 C°
22 C°
1.
T
100 Co
o
(75
35)
F
180 Fo
5
(40) Co
9
So the correct answer is D.
22.2 Co
1.
T
100 Co
o
(75
35)
F
180 Fo
5
(40) Co
9
22.2 Co
So the correct answer is D.
Or, you can convert to Celsius and subtract:
5
T1
(35 32) 1.67 o C
9
5
T2
(75 32) 23.89 o C
9
T T2 T1 23.89 1.67 22.2 Co
2. An ideal gas occupies 4.0 L at 20°C. What
volume will it occupy at 40°C if the pressure
remains constant?
A.
B.
C.
D.
43 cm3
4.3 L
8.0 L
2.0 L
2. From the ideal gas law
PV
nRT
At constant pressure,
So,
V1
T1
V
T
nR
P
constant
V2
T2
Solve for V2
V2
T2
T1
V1
The temperature must be in Kelvin.
V2
So the answer is B.
40 273
313
(4.0 L) =
(4.0 L) = 4.3 L
20 273
293
Done with Qwizdom
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