What does a slanted line on a heating curve represent?

Calculating Heat in Phase Changes

Interactive Video
•
Chemistry, Physics, Science
•
9th - 12th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A phase change
A single state of matter being heated
A cooling process
A constant temperature
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the specific heat equation used for?
Calculating the heat required for a phase change
Determining the boiling point of a substance
Calculating the heat required to change the temperature of a substance
Measuring the mass of a substance
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which equation is used when a substance is undergoing a phase change?
Q = M C delta T
Q = M C P
Q = Delta H times T
Q = M times Delta H
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the heat of fusion?
The heat required to boil a substance
The heat required to melt a substance
The heat required to freeze a substance
The heat required to condense a substance
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the heat of vaporization refer to?
The heat required to freeze a substance
The heat required to boil a substance
The heat required to melt a substance
The heat required to condense a substance
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How much heat is required to melt 50 grams of iron at its melting point if the heat of fusion is 246 joules per gram?
24,600 joules
50,000 joules
12,300 joules
6,150 joules
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a heating curve, what does a flat line indicate?
A phase change
An increase in temperature
A constant temperature
A decrease in temperature
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