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- 1. Multiple Choice
The specific heat of platinum is 0.133 J/g°C. How much heat(Q) is released when a 10 g piece of platinum cools from 100°C to 50°C?
66.5 J
665 J
0.0266 J
0.665 J
- 2. Multiple Choice
The SI units J/g°C measures
Specific heat
mass
temperature
heat energy
- 3. Multiple Choice___________ is measured by the unit Joules.Heat energyTemperatureSpecific heat
- 4. Multiple Choice
20 g of water. specific heat of water is 4.18 J/g°C. temperature changes from 25° C to 20° C, how much heat energy (Q) moves from the water to the surroundings?
418 J
209 J
83 J
4.18 J
- 5. Multiple ChoiceSpecific heat of water is 4.18 J/g°C. Specific heat of wood is 1.760 J/g°C What material needs more heat energy to raise the temperature?WaterWoodBoth are same
- 6. Multiple ChoiceA high specific heat means...It heats up quickly with energy addedIt requires more energy to change temperature
- 7. Multiple Choice
Which will heat up slower?
water
lead
granite
iron
- 8. Multiple Choice
How many Joules of energy are required to change 10 gram of water from 20 oC to 90 oC?
1400 J
2800 J
210,000 J
1,400,000 J
- 9. Multiple ChoiceThe symbol for specific heat is .......cQmt
- 10. Multiple ChoiceWhat is the formula to calculate heat energy required to raise the temperature of any substance?Q = m Cp ∆TQ = m CpQ = ½ m vm = Q Cp
- Answer choicesTagsAnswer choicesTags