c6 - rates of reaction

• increasing temperature will increase the rate of reaction
• increasing what factor will increase the speed of paricles?

  temperature
• increasing what factor will increase the number of particles in a reaction?

  concentration
• a catalyst is a chemical that speeds up a chemical reaction without being used up
• increasing surface area increases the rate of reaction
• what is another name for a biological catalyst?

  an enzyme
• what is an exothermic reaction?

  a reaction giving out heat energy
• If it takes 10 seconds for 30g of hydrogen to be made, what is the rate of reaction?

  3g/s
• the rate of reaction depends on?

  the amount of reactant particles, the speed of the particles, how much energy the particles have
• if we decrease pressure, what will happen to the rate of reaction?

  it will decrease
• increasing the concentration of reactants will increase the rate as there are more particles
• reversible reactions can proceed both forward and backwards directions
• a closed system is a system where reactants and products can't be added or removed
• at dynamic equilibrium, both the rates of the forward and backward reaction are equal
• if a forwards reaction is exothermic, the backwards reaction will be endothermic
• energy is conserved during chemical reactions, it cannot be created or destroyed