Textbook ExpertVerified Tutor
13 Nov 2021
Given information
The value of 
for a chemical reaction is the amount of heat absorbed or evolved in the reaction under conditions of constant pressure. An endothermic reaction has a positive and absorbs heat from the surroundings. An endothermic reaction feels cold to touch. An exothermic reaction has a negative and gives off heat to surroundings. An exothermic reaction feels warm to the touch.
Step-by-step explanation
Step 1.
a. dry ice evaporating
Dry ice evaporating is an endothermic process and has a positive sign. During this process heat absorbs from the surroundings.
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Solutions
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- Problem 1a
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- Problem 2c
- Problem 2d
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- Problem 3b
- Problem 3c
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- Problem 4c
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- Problem 45a
- Problem 45b
- Problem 45c
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- Problem 46c
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- Problem 51a
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- Problem 51c
- Problem 51d
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- Problem 52b
- Problem 52c
- Problem 52d
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- Problem 55a
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- Problem 55d
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- Problem 56b
- Problem 56c
- Problem 56d
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- Problem 59
- Problem 59
- Problem 59
- Problem 60
- Problem 81