Thermochemistry Flashcards
1
Q
Thermodynamics Introduction
Heat
A
- speed or Energy of particles
2
Q
Thermodynamics Introduction
Energy
A
Capacity to do work
3
Q
Thermodynamics Introduction
Work
A
Action of Force through ∆x
4
Q
Thermodynamics Introduction
Total Energy of object
A
- KE: E associated with motion ==> Thermal Energy
- PE: (bond energy); energy associated with position or composition
5
Q
Energy Units
1 L*atm
A
101.325 J
6
Q
Energy Transfer
Energy Transfer between system and surroundings
A
- Sys decrease(-) = Increase surroundings(+)
- Sys increase(+) = Decrease surroundings(-)
7
Q
Definition of Specific Heat(c)
A
- Amount of energy required to raise 1 gram by 1 C
8
Q
Exothermic vs Endothermic
Exothermic
A
- Graph increases then ends lower than starting level(∆ PE = -)
9
Q
Exothermic vs Endothermic
Endothermic
A
- Graph increases then ends higher than starting level(∆ PE = +)
10
Q
Types of Systems
Open
A
- matter and Energy exchanged with surroundings
11
Q
Types of Systems
Closed
A
- Only Energy may exchange with surroundings but not matter
12
Q
Type of System
Insulated
A
- No energy or matter exchanged with surroudings
13
Q
Transfer between system and surroundings
Energy Transfer with work and heat
A
- E = q + w
14
Q
Transfer between system and surroundings
Heat/Q
A
- Driving Force = ∆T
15
Q
Transfer between system and surroundings
Work/W
A
- Driving Force = - P * ∆V
- W= Fd
- Compression = (+)
- Expansion = (-)
