![Page 1: Endothermic and exothermic process (Data Logging)](https://reader036.vdocuments.us/reader036/viewer/2022081422/5561aef1d8b42ad9538b5770/html5/thumbnails/1.jpg)
What is DATA LOGGING ?
Process of using computer to collect data through sensors, analyze data and save the output the
results of the collection and analysis
Data : A collection of resultsData Logging : Process handling data by using
computer technology
![Page 2: Endothermic and exothermic process (Data Logging)](https://reader036.vdocuments.us/reader036/viewer/2022081422/5561aef1d8b42ad9538b5770/html5/thumbnails/2.jpg)
ELEMENTS OF DATA LOGGING
![Page 3: Endothermic and exothermic process (Data Logging)](https://reader036.vdocuments.us/reader036/viewer/2022081422/5561aef1d8b42ad9538b5770/html5/thumbnails/3.jpg)
![Page 4: Endothermic and exothermic process (Data Logging)](https://reader036.vdocuments.us/reader036/viewer/2022081422/5561aef1d8b42ad9538b5770/html5/thumbnails/4.jpg)
Endothermic and exothermic process
![Page 5: Endothermic and exothermic process (Data Logging)](https://reader036.vdocuments.us/reader036/viewer/2022081422/5561aef1d8b42ad9538b5770/html5/thumbnails/5.jpg)
engage
a b
![Page 6: Endothermic and exothermic process (Data Logging)](https://reader036.vdocuments.us/reader036/viewer/2022081422/5561aef1d8b42ad9538b5770/html5/thumbnails/6.jpg)
![Page 7: Endothermic and exothermic process (Data Logging)](https://reader036.vdocuments.us/reader036/viewer/2022081422/5561aef1d8b42ad9538b5770/html5/thumbnails/7.jpg)
Sensor Data collector
Empower
![Page 8: Endothermic and exothermic process (Data Logging)](https://reader036.vdocuments.us/reader036/viewer/2022081422/5561aef1d8b42ad9538b5770/html5/thumbnails/8.jpg)
Carry out experiment
![Page 9: Endothermic and exothermic process (Data Logging)](https://reader036.vdocuments.us/reader036/viewer/2022081422/5561aef1d8b42ad9538b5770/html5/thumbnails/9.jpg)
Result Solution of copper (II) sulphate,
![Page 10: Endothermic and exothermic process (Data Logging)](https://reader036.vdocuments.us/reader036/viewer/2022081422/5561aef1d8b42ad9538b5770/html5/thumbnails/10.jpg)
![Page 11: Endothermic and exothermic process (Data Logging)](https://reader036.vdocuments.us/reader036/viewer/2022081422/5561aef1d8b42ad9538b5770/html5/thumbnails/11.jpg)
Solution of anhydrous copper (II) sulphate
![Page 12: Endothermic and exothermic process (Data Logging)](https://reader036.vdocuments.us/reader036/viewer/2022081422/5561aef1d8b42ad9538b5770/html5/thumbnails/12.jpg)
![Page 13: Endothermic and exothermic process (Data Logging)](https://reader036.vdocuments.us/reader036/viewer/2022081422/5561aef1d8b42ad9538b5770/html5/thumbnails/13.jpg)
• Is the enthalpy change for this reaction exothermic or endothermic?
• What sign should the enthalpy change have?
• What is the equation for this reaction?
• What bonds are being broken and formed in this reaction?
• What is this enthalpy change called?
![Page 14: Endothermic and exothermic process (Data Logging)](https://reader036.vdocuments.us/reader036/viewer/2022081422/5561aef1d8b42ad9538b5770/html5/thumbnails/14.jpg)
• How can we make a triangle between these reactions?
![Page 15: Endothermic and exothermic process (Data Logging)](https://reader036.vdocuments.us/reader036/viewer/2022081422/5561aef1d8b42ad9538b5770/html5/thumbnails/15.jpg)
Enhance
Cold packs and putting ice in towel causes a cooling
effect on their person’s head and temporarily relieve
the pain and fever. Explain.
![Page 16: Endothermic and exothermic process (Data Logging)](https://reader036.vdocuments.us/reader036/viewer/2022081422/5561aef1d8b42ad9538b5770/html5/thumbnails/16.jpg)
a) Cold Pack• When the cold pack is used, the chemicals
inside the pack are made to react with each other and this reaction is highly endothermic in nature.
• Endothermic reactions involve the absorption of heat.
![Page 17: Endothermic and exothermic process (Data Logging)](https://reader036.vdocuments.us/reader036/viewer/2022081422/5561aef1d8b42ad9538b5770/html5/thumbnails/17.jpg)
• The ammonium nitrate mixing with the water creates cold. The temperature of cold packs can reach back to normal temperature.
• The heat energy is taken into the system from the surrounding. The surrounding in this case is the person’s head.
![Page 18: Endothermic and exothermic process (Data Logging)](https://reader036.vdocuments.us/reader036/viewer/2022081422/5561aef1d8b42ad9538b5770/html5/thumbnails/18.jpg)
Extension
Production of Ammonia Gas :
N2 (g) + 3H2 (g) ↔ 2NH3 (g)
What will happen to the reaction if we increase the concentration the temperature of the reactant mixture?
![Page 19: Endothermic and exothermic process (Data Logging)](https://reader036.vdocuments.us/reader036/viewer/2022081422/5561aef1d8b42ad9538b5770/html5/thumbnails/19.jpg)
• If the temperature of a reaction mixture is increase, the
equilibrium will shift to decrease the temperature.
• Based on Le Chatelier’s Principle which stated that if a
chemical system at equilibrium experiences a change in
concentration, temperature or total pressure, the
equilibrium will shift in order to minimize that changes a
new equilibrium is established.
![Page 20: Endothermic and exothermic process (Data Logging)](https://reader036.vdocuments.us/reader036/viewer/2022081422/5561aef1d8b42ad9538b5770/html5/thumbnails/20.jpg)
• So, if we increase the temperature, the equilibrium will
shift to the reactant part which is left.
• So, the reaction will undergo endothermic reaction as it
use up heat energy.
• Ammonia will broken down into hydrogen and nitrogen
gas. An increase in temperature will decrease the yield
of ammonia , NH3.