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WorksheetsThermochemistry: Week 2
Total questions: 10
Worksheet time: 18mins
In the reaction coordinate shown, there is an intake of energy to form the products of the reaction. This reaction can be categorized as a ...
endothermic reaction
exothermic reaction
In the reaction coordinate shown, there is a release of energy when the products of the reaction are formed. This reaction can be categorized as a ...
endothermic reaction
exothermic reaction
The diagram represents two solids and the temperature of each. What occurs when the two solids are placed in contact with each other?
Heat energy flows from solid A to solid B. Solid A decreases in temperature
Heat energy flows from solid A to solid B. Solid A increases in temperature
Heat energy flows from solid B to solid A. Solid B decreases in temperature.
Heat energy flows from solid B to solid A. Solid B increases in temperature.
The SI unit of heat and energy is the __________.
Celcius
Kelvin
joule
watt
How much heat does an aluminum block absorb if 10.00 grams are heated from 25.0oC to 50.0oC? the specific heat of aluminum is 0.9025 J/goC
450
-450
225
-225
If 200 grams of water is to be heated from 24.0° C to 100.0° C to make a cup of tea, what is the mass and what is the change in temperature?
m=200g
∆t= -76
m=200g
∆t=124
m=200
∆t=100
m=200g
∆t=76
20.0 g of water. specific heat of water is 4.18 J/g°C. temperature changes from 25.0° C to 20.0° C, how much heat energy (Q) moves from the water to the surroundings?
418 J
209 J
83 J
4.18 J
How do you find ΔT ?
T(final) - T (initial)
T (initial) - T (final)
