Anhydrous copper sulphate was dissolved in one beaker and hydrated copper sulphate is another beaker. what heat changes do you expect in these beaker and why?
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Answered by
66
The reaction between water and copper sulphate is exothermic.
Hydrated Copper Sulphate already has some water of crystallization hence we expect less heat to be emitted.
When we dissolve the two solids in different beakers containing water and use thermometers to read temperatures of the two different solutions we observe that :
In the case of hydrated copper sulphate we observe a lower temperature reading than the thermometer in the anhydrous copper sulphate.
This is because more heat is released as anhydrous copper sulphate is dissolved in water than when hydrated copper (II) Sulphate is dissolved in water.
In the case of hydrated copper sulphate heat has already been released.
Hydrated Copper Sulphate already has some water of crystallization hence we expect less heat to be emitted.
When we dissolve the two solids in different beakers containing water and use thermometers to read temperatures of the two different solutions we observe that :
In the case of hydrated copper sulphate we observe a lower temperature reading than the thermometer in the anhydrous copper sulphate.
This is because more heat is released as anhydrous copper sulphate is dissolved in water than when hydrated copper (II) Sulphate is dissolved in water.
In the case of hydrated copper sulphate heat has already been released.
Answered by
16
Explanation:
this is due to the movement of water particles. due to this, the copper sulphate particles and water molecules get mix with each other by the process of diffusion. due to this diffusion, when a crystal of copper sulphate is placed at the bottom of a beaker containing water , the water slowly turns blue.
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