Dynamite the energy in bonds
What type of reaction is a dynamite explosion
Exothermic reaction i.e it releases energy
◇H is negitive
What is the explosive part of dynamite
Nitroglycerin
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C³H⁵N³O⁹
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H² C—O—NO²
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H² C—O—NO²
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H² C—O—NO²
What makes an explosion
The reaction is so exothermic the heat energy released instantly turns the solid into a gas
Define Enthalpy change
Net heat energy required or relesed during a reaction
What does Thermal decomposition of a metal carbonate produce
Carbon dioxide and a metal oxide
What type of reaction is Thermal Decomposition
Endothermic i.e Energy absorbed
◇H positive
Define Thermal decomposition
To break something down with heat
What is the formula for ◇H
◇H=energy in reactants-energy in products
◇H=energy required - energy released
Define Bond Energy
Amount of energy needed to break 1 mole of covalent bonds in gaseous molecules
How to draw a dot cross diagram from a displayed formula
1. Draw centeral atom
Usually not hydrogen or a halegeon
Least likely to attract e-/furthest away from fillinf outer shell
2. Draw termial atoms around
More likely to be hydrogens and halegeons
Tip for calculating bond energy
The bond energy is the amount of energy released or absorbed from one mole of gas. To find more the bond energy for more than 1 mole you must × the bond energy by the number of moles required