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WorksheetsThe Flow of heat
Total questions: 25
Worksheet time: 21mins
The amount of energy required to raise the temperature 1ºC for every gram is called____?
Thermal Energy
Specific Heat
Temperature
Kinetic Energy
In an exothermic process the surrounding loses heat.
True
False
A reaction is performed in a beaker with a temperature probe recording the temperature changes of the reaction. If the temperature began at 15.0 degrees Celsius and ended at 7.5 degrees Celsius. If the reaction is our system, is the system endothermic or exothermic?
Exothermic
Endothermic
During an endothermic reaction in a beaker if we are part of the surroundings and touched the beaker, it would feel _______.
Warm
Cold
Bubbly
Damp
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 amount of heat energy required to change the temperature of 12 g of gold from 45°C to 15°C is -47 J. What is the specific heat capacity of gold?
0.13 J/(g°C)
17,000 J/(g°C)
1600 J/(g°C)
0.065 J/(g°C)
A cast iron skillet is used to fry bacon. For optimal frying, the pan must be heated to about 178 oC from a room temperature of 22.0 oC. It is known that 1.58 x 105 J of heat energy are absorbed by the pan to reach the desired temperature and the specific heat of iron is 0.450 J/g oC. What must the mass of the skillet be?
12.7 kg
2.25 kg
110 kg
1.97 kg
