Exothermic Reactions

  1. Give out energy
  2. Increase in temperature
  3. Reactants → Products + Energy
  4. Energy change is negative [Sum of bonds broken - Sum of bonds created = Energy Change]

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Exothermic Reactions

  1. Takes in energy
  2. Decrease in temperature
  3. Reactants + Energy→ Products [EFFECT OF INCREASING TEMPERATURE OF ENDO THERMIC CAN LEAD TO MORE YIELD]
  4. Energy change is positive [Sum of bonds broken - Sum of bonds created = Energy Change]

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Explaining Energy Changes -

→ Breaking bonds requires energy, Making bonds releases energy

Exothermic -

  1. Energy used [Break bonds] < Energy released [Making bonds] → Exothermic

Endothermic -

  1. Energy used [Break bonds] > Energy released [Making bonds] → Endothermic