Electrochemistry
- Ideal Gas Laws
Basic Assumptions of the Kinetic Theory (for ideal gases) • * Gas consists of particles of negligible volume. • * Particles exert no attractive forces on each other. • Particles are in continuous random motion. • The collisions between particles...
- Reaction Kinetic : 11.1 Reaction Rate
What is reaction rate? how fast the concentration of reactant(or product) are change in a chemical reaction How to expressing the reaction rate? ...
- Electrochemistry : 10.1 Galvanic Cell (continued)
SPONTANEOUS REACTION occurs as the result of different ability of metal to give up their electron to flow through the circuit. CELL POTENTIAL (ECell) different in electrical potential of electrodes also called voltage or electromotive...
- Electrochemistry : 10.1 Galvanic Cell
Electrochemistry Study of relationship between chemical change & electric work Oxidation Loss of electron by species accompanied byn an increase in oxidation number Ex: Reduction Gain electron by a species accompanied by a decrease number...
- Thermochemistry : 9.3 Born-haber Cycle
First Ionization Energy (IE1)Energy required for 1 mol of gaseous atom to lose 1 mol of electrons. Affinity Electron (EA) Energy change that occurs when 1 mol of gaseous atom gains 1 mol of electrons. Lattice EnergyEnergy change when 1 mol of solid...
Electrochemistry
Reaction Kinetic : 11.3 Factor Affecting Reaction Rate
- There are 4 factors that affect the rate of reaction which are:
- concentration
- particle size
- pressure
- temperature
- Concentration
- the relationship between the rate of reaction and the concentration can be show below:
- as concentration increase, the number of molecules per unit volume increase.
- Therefore, the frequency of collision between the reactant molecules increase.
- the frequency of effective collision also increase hence increase the rate of reaction.
- Particle size
- The relationship between the rate of reaction and the particle size can be show below:
- When the size of particles for the same masses of particles decrease, the total surface area of the particles increase
- The total surface area exposes for the collision increase, hence, the frequency of collision increase
- The frequency of effective collision also increase hence it increase the rate of reaction
- Pressure
- Only applied for gaseous reactants
- The relationship between the rate of reaction and pressure of the reactant can be show below:
- When the pressure increase, the volume of the reactant decrease.
- The reactant molecules become closer from each other, thus easier to collide
- Therefore, the frequency to collision increase and the frequency of effective collision also increase
- Hence, the rate of reaction increase
- Temperature
- The relationship between the rate of reaction and temperature of the reactant can be show below :
- As the temperature increase, the average kinetic energy of the reactant particles increase
- Thus, it move faster and collide more often thus the frequency of collision increase
The frequency of effective collision also increase hence the rate of reaction increase
- Ideal Gas Laws
Basic Assumptions of the Kinetic Theory (for ideal gases) • * Gas consists of particles of negligible volume. • * Particles exert no attractive forces on each other. • Particles are in continuous random motion. • The collisions between particles...
- Reaction Kinetic : 11.1 Reaction Rate
What is reaction rate? how fast the concentration of reactant(or product) are change in a chemical reaction How to expressing the reaction rate? ...
- Electrochemistry : 10.1 Galvanic Cell (continued)
SPONTANEOUS REACTION occurs as the result of different ability of metal to give up their electron to flow through the circuit. CELL POTENTIAL (ECell) different in electrical potential of electrodes also called voltage or electromotive...
- Electrochemistry : 10.1 Galvanic Cell
Electrochemistry Study of relationship between chemical change & electric work Oxidation Loss of electron by species accompanied byn an increase in oxidation number Ex: Reduction Gain electron by a species accompanied by a decrease number...
- Thermochemistry : 9.3 Born-haber Cycle
First Ionization Energy (IE1)Energy required for 1 mol of gaseous atom to lose 1 mol of electrons. Affinity Electron (EA) Energy change that occurs when 1 mol of gaseous atom gains 1 mol of electrons. Lattice EnergyEnergy change when 1 mol of solid...