Chapter 20 - Thermodynamics: Entropy, Free Energy, and Reaction Direction

studied byStudied by 1 person
0.0(0)
learn
LearnA personalized and smart learning plan
exam
Practice TestTake a test on your terms and definitions
spaced repetition
Spaced RepetitionScientifically backed study method
heart puzzle
Matching GameHow quick can you match all your cards?
flashcards
FlashcardsStudy terms and definitions

1 / 7

flashcard set

Earn XP

Description and Tags

8 Terms

1
spontaneous change
A(n) ________ in a system happens when certain criteria are met and there is no continual input of energy from outside the system.
New cards
2
salt
When a(n) ________ is dissolved, it converts a crystalline solid and a pure liquid into distinctions.
New cards
3
chemical processes
In ________, fewer moles of crystalline solids create more moles of gases and /or solvated ions, increasing particle freedom of motion and dispersing the energy of motion: A change in the freedom of mobility of particles in a system, that is, the dispersal of their energy of motion is a critical element in determining the direction of a spontaneous event in thermodynamic terms.
New cards
4
phase transitions
The ________ transform a solid, in which motion is constrained, into a liquid, in which particles have more freedom to move around each other, and finally into a gas, in which particles have considerably greater freedom of motion.
New cards
5
nonspontaneous event
A(n) ________, on the other hand, Change happens only if the environment provides the system with input on a continual basis.
New cards
6
entropy
The ________ of a system with more microstates (bigger W) is greater (higher S)
New cards
7
kinetic energy
The number of microstates for a system is the number of ways it may divide (distribute or spread) its ________ across all of its particles 'different movements.
New cards
8
R NA
________= 1.381023 J /K Because the word W refers to the number of microstates, it has no units; hence, S has units of J /K is an abbreviation for joules /kelvin.
New cards
robot