WorksheetsCalorimetry Problems
Total questions: 20
Worksheet time: 54mins
If two objects have different temperatures when they come in contact, heat will flow from the warmer object to the cooler one UNTIL ____________
one reaches a temperature of zero
they both have an equal temperature
one runs out of energy
A piece of metal with a mass of 32.8 g is heated to 100.5°C and dropped into 138.2 g of water at 20.0°C. The final temperature of the system is 30.2°C. What is the specific heat capacity of the metal? (show your work)
If 980. J of energy is added to 6.20 g of water at 18.0 °C, what is the final temperature of the water? (The specific heat of water is 4.18 J/g°C.)
37.8 °C
-19.8 °C
19.8 °C
55.8 °C
A piece of metal with a mass of 32.8 g is heated to 100.5°C and dropped into 138.2 g of water at 20.0°C. The final temperature of the system is 30.2°C. What is the specific heat capacity of the metal?
2.56 J/g°C
0.391 J/g°C
5.29 J/g°C
3.50 J/g°C
Equal masses of copper, stainless steel, carbon steel, and zinc were all heated using 10,000 JOULES of thermal energy. What material would be have the LARGEST change in temperature?
Copper
Carbon Steel
Zinc
Stainless Steel
If an 85.0 g sample of copper with a specific heat of 0.41 J/g°C is cooled from 45°C to 25°C, how much energy will it lose?
-497 J
-846 J
-697 J
-346 J
Calculate the heat absorbed by 105.0 grams of water when it is heated to cook spaghetti. The initial temperature of the water is 20.0°C, and the final temperature of the water is 99.0°C. The specific heat of water is 4.18 J/g•°C.
8778 J
0.0005 J
34673 J
43451.1 J
A piece of copper alloy with a mass of 85.0 g is heated from 30.0°C to 45°C. In the process, it absorbs 523 J of energy as heat. What is the specific heat of the copper?
0.41 J/g°C
0.73 J/g°C
0.29 J/g°C
0.57 J/g°C
What term is given to a reaction which transfers heat energy to the surroundings?
Endothermic
Reversible
Exothermic
Exotermic
Which of the following process is exothermic?
Candle was melting
A puddle evaporating
Dry ice (solid carbon dioxide) subliming to form gaseous carbon dioxide
Water freezing to form ice
Temperature is...
A measure of the potential energy stored in a substance
The same as heat
A measure of the random motions of the components of a substance
6 CO2+ 6 H2O + Energy → C6H12O6 + 6 O2
endothermic reaction
exothermic reaction
Is this diagram endothermic or exothermic
Endothermic
Exotermic
Exothermic
Endote
Is the combustion of propane endothermic or exothermic?
Endothermic
Exothermic
Is this reaction endothermic or exothermic?
