Reversible reactions and dynamic equilibrium GapFill

 ReversibleEquilibratedEndothermicUndirectional reactions are reactions in which the products can react to form the reactants. Reversible reactions are represented using a  «←»⇌. The ratio of reactants to products can be changed by changing the  conditionsequipmentscale of the reactiontime. Reversible reactions that are exothermic in one direction are  staticeven more exothermicendothermicjust as exothermic in the other direction. When the rate of the forward reaction and the rate of the backward reaction are equal, the reaction is  unstableat dynamic equilibriumcompleteslowing.

 Percentage yieldLe Chatelier's principleReaction profile ruleAvogadro's law states that a system will act to minimise a change in conditions.

• If the concentration of a reactant or product is changed, the  energy levelmassconcentrationtemperature of all the substances will change until the reaction is at equilibrium again.
• If the temperature of the system is changed, the rate of the forward and backward reactions will change until equilibrium is reached.  CoolRoomStableHigh temperatures favour endothermic reactions, and  lowboilinghumidstable temperatures favour exothermic reactions.
• For reactions with gaseous reactants, the pressure can affect the position of equilibrium. High pressures shift the position of equilibrium to the side with fewer  largegaseoussolidsmall molecules.