Unit 6: Thermodynamics

0.0(0)
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/19

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

20 Terms

1
New cards

Exothermic

________ is when energy is transferred from the system to the surroundings, such as when a chemical reaction occurs in a beaker and the beaker feels hot.

2
New cards

Hess’s Law

________ states that if a reaction can be broken into a series of steps, the sum of the ΔH of those steps are equal to the ΔH of the reaction.

3
New cards

Enthalpy change

________ is the measure of energy that is released or absorbed when bonds are broken /formed.

4
New cards

Temperature

________ remains constant during a phase change.

5
New cards

Calorimetry

________ is the measurement of heat changes during a chemical reaction.

6
New cards

Enthalpy of vaporization

________ is how much energy is required to turn a liquid to a gas.

7
New cards

Endothermic reactions

________ occur when a system absorbs the energy from the surroundings, such as when a beaker feels cold.

8
New cards

Vapor pressure

________ is the amount of pressure given off by molecules as they go from solid /liquid to gas.

9
New cards

heat of vaporization

The ________ is the energy given off when a gas condenses.

10
New cards

Hydration energy

________ is a Coulombic energy and its magnitude increases as the ions increase their charge or decrease the size.

11
New cards

released

When bonds are formed, energy is ____.

12
New cards

Enthalpy of fusion

________ is the amount of energy required to cause a solid to melt.

13
New cards

absorbed

When bonds are broken, energy is _____.

14
New cards

Solid to gas

sublimation

15
New cards

Gas to solid

deposition

16
New cards

ΔH

Enthalpy change

17
New cards

ΔHf°

Enthalpy of formation

18
New cards

Enthalpy of formation

The amount of energy released when one mole of a compound is made from pure substances

19
New cards

Vapor pressure

Molecules that go from solid/liquid to gas emit ________.

20
New cards

Endothermic

________ is when energy is transferred from the surrounding to the system, such as when a chemical reaction occurs in a beaker and the beaker feels cold.