6.37 Find q when 22.0 g of water is heated from 25.0°C to 100.°C.

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Chapter1: Chemical Foundations
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or Physical Change
(Sample Problems 6.4 to 6.7)
Concept Review Questions
to
6.32 Which is larger, the specific heat capacity or the molar heat
capacity of a substance? Explain.
6.33 What data do you need to determine the specific heat capac-
ity of a substance?
6.34 Is the specific heat capacity of a substance an intensive or
extensive property? Explain.
6.35 Distinguish between specific heat capacity, molar heat ca-
pacity, and heat capacity.
6.36 Both a coffee-cup calorimeter and a bomb calorimeter can be
used to measure the heat transferred in a reaction. Which mea-
sures AE and which measures AH? Explain.
Skill-Building Exercises (grouped in similar pairs)
6.37 Find q when 22.0 g of water is heated from 25.0°C to 100.°C.
6.38 Calculate q when 0.10 g of ice is cooled from 10.°C to -75°C
(Cice = 2.087 J/g K).
6.39 A 295-g aluminum engine part at an initial temperature of
13.00°C absorbs 75.0 kJ of heat. What is the final temperature of
the part (c of Al = 0.900 J/g•K)?
%3D
6.40 A 27.7-g sample of the radiator coolant ethylene glycol releases
688 J of heat. What was the initial temperature of the sample if the
final temperature is 32.5°C (c of ethylene glycol = 2.42 J/g•K)?
6.41 Two iron bolts of equal mass-one at 100.°C, the other at
55°C-are placed in an insulated container. Assuming the heat
Transcribed Image Text:or Physical Change (Sample Problems 6.4 to 6.7) Concept Review Questions to 6.32 Which is larger, the specific heat capacity or the molar heat capacity of a substance? Explain. 6.33 What data do you need to determine the specific heat capac- ity of a substance? 6.34 Is the specific heat capacity of a substance an intensive or extensive property? Explain. 6.35 Distinguish between specific heat capacity, molar heat ca- pacity, and heat capacity. 6.36 Both a coffee-cup calorimeter and a bomb calorimeter can be used to measure the heat transferred in a reaction. Which mea- sures AE and which measures AH? Explain. Skill-Building Exercises (grouped in similar pairs) 6.37 Find q when 22.0 g of water is heated from 25.0°C to 100.°C. 6.38 Calculate q when 0.10 g of ice is cooled from 10.°C to -75°C (Cice = 2.087 J/g K). 6.39 A 295-g aluminum engine part at an initial temperature of 13.00°C absorbs 75.0 kJ of heat. What is the final temperature of the part (c of Al = 0.900 J/g•K)? %3D 6.40 A 27.7-g sample of the radiator coolant ethylene glycol releases 688 J of heat. What was the initial temperature of the sample if the final temperature is 32.5°C (c of ethylene glycol = 2.42 J/g•K)? 6.41 Two iron bolts of equal mass-one at 100.°C, the other at 55°C-are placed in an insulated container. Assuming the heat
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