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…. ID: 525516
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Endothermic Reaction Investigation – Ammonium Chloride + Water
WALT – Explain what an endothermic reaction is and the factors that affect an Endothermic reactionSlide2
Chemical reactions where HEAT…
Is transferred to the surroundings…
Indicated by a RISE in temperatureBreak bonds which releases heat energy.
Chemical reactions where HEAT…Is transferred from the surroundings …Indicated by a FALL in temperatureNeed to make bonds so take in energy, reducing the temperature.Slide3
Ammonium Chloride + Water
What happens when you mix the 2?Take the temperature before and then after
You have – various amounts of Ammonium Chloride
Measuring cylinder, thermometer and beakerSlide5
How can you design an investigation to maximise the reduction in temperature ?
Using the equation
Ammonium Chloride + WaterSlide6
Amount Ammonium Chloride (
gm)Vol Water (ml)Keep it ConstantTemp before (C)Temp After (C)Temp Difference (C)0.520ml1.01.52.02.53.0
Add the same amount of water to the
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
Keep the same?