# Chapter 2- Entropy

?
• Created by: Amanda (:
• Created on: 07-01-13 18:31
What is the first law of thermodynamics?
Energy can never be created or destroyed
1 of 7
What is the second law of thermodynamics(Entropy)?
Entropy always increases in the transformation of energy.
2 of 7
Which conditions can cause a reaction to be spontaneous?
Reactions which are highly exothermic and lead to greater disorder.
3 of 7
Equation for System?
Sys= Products - Reactants
4 of 7
Equation for Surroundings?
Surr= Change in enthalpy / Temperature(kelvin)
5 of 7
Enthalpy of Hydration
The amount of energy released when one mole of gaseous ions dissolve in water under standard conditions to produce a solution of conc. 1moldm-3
6 of 7
Enthalpy of Solution
The enthalpy change when 1 mole of the compound dissolves in a stated amount of water under standard conditions.
7 of 7

## Other cards in this set

### Card 2

#### Front

What is the second law of thermodynamics(Entropy)?

#### Back

Entropy always increases in the transformation of energy.

### Card 3

#### Front

Which conditions can cause a reaction to be spontaneous?

### Card 4

#### Front

Equation for System?

### Card 5

#### Front

Equation for Surroundings?