Perform the following activity.
1. Take 3 beakers and label A,B and C.
2. Put 25mL of water in A,B and C.
3. Measure and record the temperature of each liquid contained in the beakers above.
4. Add 2 spatulas of Common Salt,Baking Powder,Washing Soda to A,B and C respectively and stir.
5. Finally measure and record the temperature of each of the mixture above.
Find out which processes are exothermic and which ones are endothermic in nature. Make a file of the experiment done.
Ms Meera G., PGT (Chem)
Ms Ushadevi, TGT (Sc)