Exploring Thermochemistry Concepts
Interactive Video
•
Chemistry
•
6th - 10th Grade
•
Practice Problem
•
Hard
Mia Campbell
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the 'ΔT' in the equation Q=MCΔT represent?
Temperature decrease
Temperature increase
Total temperature
Change in temperature
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the unit for specific heat in the equation Q=MCΔT?
Joules
Kilocalories
Joules per gram degree Celsius
Calories
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a calorimeter measure?
Volume of a liquid
Heat flow and measurement
Mass of a substance
Density of a solution
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a calorimetry experiment, if the Q of water is negative, what does it indicate about the reaction?
Equilibrium
No reaction
Endothermic
Exothermic
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final step in calculating the ΔH of a reaction in a calorimetry lab?
Changing the sign of Q of water
Converting joules to kilojoules
Calculating the mass of the salt
Dividing kilojoules by moles
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of reversing the sign of Q of water in calorimetry calculations?
To represent energy absorbed or released
To indicate a chemical change
To show energy conservation
To balance the equation
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is indicated by a negative ΔH in a calorimetry experiment?
The reaction is at equilibrium
The reaction absorbs heat
No reaction occurred
The reaction releases heat
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