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30 Cards in this Set
- Front
- Back
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What is a specific number--the amount of heat you need to raise the temperature of 1g of the material by 1C° |
The specific heat capacity |
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What are the three units to measure temperature? |
C° F° Kelvin (K) |
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At what temperature in C does water freeze, at what temperature does it boil? |
It freezes at 0 C°, it boils at 100°C |
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(5/9)(T - 32) is the formula to convert what temperature type to another? |
Celsius to Farenheit |
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((9/5)T) + 32) is the formula to convert what temperature to what other temperature? |
Farenheit to Celsius |
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T + 273.2 is the formula to convert what until of temperature to what other? |
Celsius to Kelvin |
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What is absolute zero? Is it possible in real life? |
0K. It is impossible in real life. |
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Atoms vibrate more slowly when what happens? |
When things get colder, making them get less energy. |
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What makes atoms vibrate faster? |
The temperature increases, giving them more energy. |
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Are atoms ever not vibrating? |
No, they always vibrate. |
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What happens if atoms vibrate too much/get too much energy? |
The bonds in the atom break |
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What is heat a form of? |
Heat is a form of energy. |
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What is it called when heat is transferred? What about when it is not? |
Transferred heat is just called heat. When it is not it is internal energy |
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What is the unit for specific heat capacity? What is the symbol? |
Calorie/gram°C (Cal/g°C) the symbol is "c" |
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What are the unit and symbol for heat? |
Heat is measured in calories. The symbol is Q. |
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What is the formula for heat? |
Q = mc∆T (mass * specific heat * change in temperature) |
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What is water's specific heat threshold? Is it very high or very low? |
It is 1cal/g°C it is very high. |
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If a substance's specific heat is very high, does it hold heat for a very long or a very short time? |
It holds it for a very long time. |
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What keeps things from freezing at night? |
Water vapor in the air. |
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Do metals cool down quickly or slowly? |
It cools down quickly. |
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How does exposed surface area effect heat? |
Small surface area retains heat for a long time. More surface area means it radiates heat way faster. |
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Why does metal feel cold? |
It is a good conductor, so it takes away heat from you. |
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What is the formula for specific heat? |
c=Q/m∆T |
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What is the formula for ∆T? |
Tf - Ti (final temperature - initial temperature) |
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An object has a temperature of 15°C. What is that in F? |
(15*(9/5))+32 |
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If 1600 Cal of heat are added to 50 g of water initially at a temperature of 10°C, what is the final temperature of the water? |
1,600 = (50)(1)(x-10) x = 42 |
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Is an object that had a temperature of 0°C hotter than, colder than, or at the same temperature as I've that has a temperature of 0°F. |
F is colder because 0°C is 34°F. |
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Is it possible for a temperature to be lower than 0°C? |
Yes, because 0°C is not absolute zero |
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Is it possible for a temperature to be lower than 0K on the Kelvin temperature scale? |
No, absolute zero is impossible |
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Two objects at different temperatures are placed in contact with each other but are insulated from the surroundings. Will the temperature of either object change? |
The heat will transfer until they are the same temperature. |
