Chemistry Straighterline Final Exam 2024/2025 All Questions Answered Graded A+
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Chemistry Straighterline
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Chemistry Straighterline
Straighterline Chemistry Final Exam
An endothermic reaction causes the surroundings to:
A. warm up
B. become acidic
C. condense
D. decrease in temperature
E. release CO2
D
An exothermic reaction causes the surroundings to:
A. warm up
B. become acidic
C. expand
D. decrease its tem...
Chemistry
Straighterline
Final Exam
2024/2025
All Questions
Answered
Graded A+
,Straighterline Chemistry Final Exam
An endothermic reaction causes the surroundings to:
A. warm up
B. become acidic
C. condense
D. decrease in temperature
E. release CO2
D
An exothermic reaction causes the surroundings to:
A. warm up
B. become acidic
C. expand
D. decrease its temperature
E. release CO2
A
Copper metal has a specific heat of 0.385 J/g•oC and has a melting point of 1083oC.
calculate the amount of heat required to raise the temperature of 22.8 g of Cu from 20.0oC to 875oC.
A. 1.97 10 ─ 5 J
B. 1.0 10 ─ 2 J
C. 329 J
D. 7.51 kJ
E. 10.5 kJ
D
,Calculate the amount of heat necessary to raise the temperature of 12.0 kg of water from 15.4oC to
93.0oC.
A. 0.027 kJ B. 324 kJ C. 389 kJ D. 931 kJ
E. 3890 kJ
E
How much heat is required to raise the temperature of 1500 g of water from 25oC
to 52oC?
A. 1500 kJ B. 169 kJ C. 6.27 kJ D. 40.5 J E. 40.5 kJ
B
How many degrees of temperature rise will occur when a 25.0 g block of aluminum absorbs 10 kJ of
heat? The specific heat of Al is 0.900 J/g•oC.
A. 0.44oC B. 22.5oC C. 225oC D. 360oC E. 444oC
E
If 325 g of water at 4.2oC absorbs 12.28 kJ, then what is the final temperature of the water?
A. 4.21oC B. 4.8oC C. 9.0oC D. 13.2oC E. 2938oC
D
A glass containing 200 g of H2O at 20oC was placed into a refrigerator. The water loses 11.7 kJ as it cools
to a constant temperature. What is its new temperature?
A. 0.013oC B. 4oC C. 6oC D. 14oC E. 34oC
C
, A piece of copper with a mass of 218 g has a heat capacity of 83.9 J/oC. What is the specific heat of
copper?
A. 0.385 J/g•oC B. 1.83 ´ 104 J/g•oC C. 2.60 J/g•oC D. 1.32 J/g•oC
E. 24.5 J/g•oC
A
The specific heat of gold is 0.129 J/g•oC. What is the molar heat capacity of gold (unit is J/mol•oC)?
A. 0.039 J/mol•oC
B. 0.129 J/mol•oC
C. 25.4 J/mol•oC
D. 39.0 kJ/mol•oC
E. 197 J/mol•oC
C
When 0.7521 g of benzoic acid was burned in a calorimeter containing 1000 g of water, a temperature
rise of 3.60oC was observed. What is the heat capacity of the bomb calorimeter, excluding water? The
heat of combustion of benzoic acid is ─26.42 kJ/g.
A. 15.87 kJ/oC
B. 4.18 kJ/oC
C. 5.52 kJ/oC
D. 1.34 kJ/oC
E. 752.1 kJ/oC
D
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