Chmical Equlibrium Flashcards
State of matter
Rate of reaction
Vf - rate of forwarded reaction. How many moles of reactant are turn in to product per unit of time. Vb/r - rate of backward reaction. Hoe many moles of product turn in to reactant per unit of time. Vb= Vf A state in which there is no change in the concentration of the proudest or the reactants. Every chemical reaction system strivers to reach chemical equilibrium.
Ke
[products] \ [reactants] It constant majored only when a system is in a equilibrium. Measured in STP(1 atmo/ 0 C). Standard Temperature and Pressure. Ke >1 more products during equilibrium state . Thus the reaction is spontenic and favor to accrue. Ke < 1 more reactants during equilibrium state. Thus the reaction in not spontniues and not ,favor to accrue.
La chateliare’s principle
A chemical system strives to be found and stay in equilibrium state . If a chemical system at equilibrium experiences a change in consecration/temperature/pressure it will try to compensate that by increasing Vf or Vb to achieve equilibrium.
Factors effecting a system at equilibrium
Concentration the reaction will shift to their other side .
Pressure an increase causes the reaction to shift to the side with the less moles (soda)
Temapture the only factor that can change the key equilibrium permanently.
exotermic chemical reaction that realise in a form of heat Make delta H minus.
reactents >< products + heat. The rate of Vb will increase.
endothermic a chemical reaction the absorb energy in a form of heat. delta H pulse.
reactents + heat >< products The rate of Vf will increase
