Free Exam: Throwback SHS 512 Chapter 18
Number of Questions in Test: 5
Note: Answers are not shown below but will be copied with this test.
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The heating curve below shows what happens as heat is added to a piece of ice at a constant rate. What is occurring during the portion of the heating curve labeled D?
[cmimg]0/7172241_L9RSE0KQ.png[/cmimg]
[cmimg]0/7172241_L9RSE0KQ.png[/cmimg]
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |
Question 2
How much energy is required to raise 65 g of iron (Cp = 0.11 cal/g°C) from 21°C to 71°C?
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |
Question 3
What happens when you drop an ice cube at 0°C into liquid nitrogen at -200°C?
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |
Question 4
If you heat 10-gram samples of each substance in the table below, which sample will reach 75°C last?
[cmimg]0/7172241_AKW8MG8T.png[/cmimg]
[cmimg]0/7172241_AKW8MG8T.png[/cmimg]
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |
Question 5
The substances in a beaker are at room temperature before a chemical reaction takes place. What do you know if you touch the beaker during the chemical reaction and it feels hot?
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |