Data logging is the process of using computers to collect data through sensors, analyze the data, and save the results of the collection and analysis. It involves sensors that detect and record measurements, a data collector that receives information from the sensors, and data analysis to interpret the results. Common applications of data logging include monitoring industrial processes, scientific experiments, machine testing, and more.

1. 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 results
Data Logging : Process handling data by using
computer technology

2. ELEMENTS OF DATA LOGGING

4. Endothermic and exothermic
process

5. engage
a b

7. Empower
Sensor Data collector

8. Carry out experiment

9. Result
Solution of copper (II) sulphate,

11. Solution of anhydrous copper (II) sulphate

13. • 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?

14. • How can we make a triangle between
these reactions?

15. 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.

16. 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.

17. • 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.

18. 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?

19. • 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.

20. • 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.