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Endothermic Reaction Investigation – Ammonium Chloride + Water. WALT – Explain what an endothermic reaction is and the factors that affect an Endothermic reaction. Exothermic. Endothermic. Chemical reactions where HEAT… Is transferred to the surroundings… Indicated by a RISE in temperature

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Endothermic Reaction Investigation – Ammonium Chloride + Water


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endothermic reaction investigation ammonium chloride water

Endothermic Reaction Investigation – Ammonium Chloride + Water

WALT – Explain what an endothermic reaction is and the factors that affect an Endothermic reaction

slide2

Exothermic

Endothermic

Chemical reactions where HEAT…

Is transferred to the surroundings…

Indicated by a RISE in temperature

Break bonds which releases heat energy.

Chemical reactions where HEAT…

Is transferred from the surroundings …

Indicated by a FALL in temperature

Need to make bonds so take in energy, reducing the temperature.

ammonium chloride water
Ammonium Chloride + Water
  • What happens when you mix the 2?
  • Take the temperature before and then after

http://www.youtube.com/watch?v=GQkJI-Nq3Os

you have various amounts of ammonium chloride
You have – various amounts of Ammonium Chloride
  • 0.5g
  • 1.0g
  • 1.5g
  • 2.0g
  • 2.5g
  • 3.0g
  • Measuring cylinder, thermometer and beaker
how can you design an investigation to maximise the reduction in temperature
How can you design an investigation to maximise the reduction in temperature ?
  • Using the equation
  • Ammonium Chloride + Water
answer in full sentences in your books
Answer in full sentences in your books
  • What was the best combination for the reduction in temperature in the reaction?
  • If you were to repeat the experiment what would you
  • Change?
  • Keep the same?