Unit 10 ThermoChemistry Test Review

Flashcard
•
Chemistry
•
9th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an endothermic reaction?
Back
An endothermic reaction is a chemical reaction that absorbs heat from its surroundings, resulting in a decrease in temperature of the surroundings.
2.
FLASHCARD QUESTION
Front
What is an exothermic reaction?
Back
An exothermic reaction is a chemical reaction that releases heat to its surroundings, resulting in an increase in temperature of the surroundings.
3.
FLASHCARD QUESTION
Front
What is specific heat?
Back
Specific heat is the amount of heat required to raise the temperature of 1 gram of a substance by 1 degree Celsius.
4.
FLASHCARD QUESTION
Front
How do you calculate the specific heat of a substance?
Back
Specific heat (c) can be calculated using the formula: c = q / (m * ΔT), where q is the heat absorbed or released, m is the mass, and ΔT is the change in temperature.
5.
FLASHCARD QUESTION
Front
What is the specific heat of water?
Back
The specific heat of water is 4.18 J/g°C.
6.
FLASHCARD QUESTION
Front
Which material has a higher specific heat: wood or water?
Back
Water has a higher specific heat (4184 J/KgºC) compared to wood (1760 J/KgºC), meaning it requires more energy to raise its temperature.
7.
FLASHCARD QUESTION
Front
What happens to temperature during an endothermic reaction?
Back
In an endothermic reaction, the temperature of the surroundings decreases as the system absorbs heat.
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