Quiz #3-3 PRACTICE: Themochemistry
For each of the following questions or statements, select the most appropriate response and click its letter:
Congratulations - you have completed Quiz #3-3 PRACTICE: Themochemistry. You scored %%SCORE%% out of %%TOTAL%%. Your performance has been rated as %%RATING%%
Your answers are highlighted below.
Given the reaction: 2 Ba(s) + O2 (g) → 2 BaO (s) + 1107 kJ How much heat is released when 5.75 g of BaO is produced?
4 Al (s) + 3 O2 (g) → 2 Al2O3 (s) ; ΔH° = -3351 kJis __________, and therefore heat is __________ by the reaction.
The average fuel value of sugars is 17 kJ/g. Assuming that the sugar is the only fuel source, what is the fuel value of a 500. mL serving of Kool-Aid containing 100. g of sugar?
2.1 x 105 kJ
4.2 x 104 kJ
5.0 x 102 kJ
1.7 x 103 kJ
How much heat is released when an acetylene (C2H2) torch burns 250 grams of fuel? (ΔHcomb = -1300 kJ/mol)
The value of ΔH° for the reaction below is -128.1 kJ/mol:
CH3OH (l) → CO (g) + 2 H2 (g)How much heat is released when 15.5 g of CH3OH decomposes as shown in the equation?
When 1.0 g of solid NaOH (ΔHsoln = -44.51 kJ/mol) dissolves in 10 L of water, how much heat is released?
What does the symbol "ΔH" stand for?
the heat of reaction for a chemical reaction
the specific heat of a substance
one Calorie given off by a reaction
the heat capacity of a substance
The energy involved in dissolving a solid is known as:
heat of solution
heat of formation
heat of fusion
heat of reaction
When 10 g of diethyl ether is converted to vapor at its boiling point, about how much heat is absorbed? (C4H10O, ΔHvap = 15.7 kJ/mol, boiling point: 34.6°C)
The following equation shows the reaction that occurs when nitroglycerine explodes: 4 C3H5O9N3 → 12 CO2 + 6 N2 + O2 + 10 H2O + 1725 kcal This reaction is:
a combination reaction
a combustion reaction
Once you are finished, click the button below. Any items you have not completed will be marked incorrect. Get Results
There are 10 questions to complete.
Shaded items are complete.
You have completed
Your score is
You have not finished your quiz. If you leave this page, your progress will be lost.
Final Score on Quiz
Attempted Questions Correct
Attempted Questions Wrong
Questions Not Attempted
Total Questions on Quiz
Answer Choice(s) Selected
Need more practice!