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50g CaCO 3 is allowed to desociated in 22.4 lit vessel at 819°C. If 50% of CaCO 3 is left at equilibrium, active masses of CaCO 3 , CaO & CO 2

50g CaCO3 is allowed to desociated in 22.4 lit vessel at 819°C. If 50% of CaCO3 is left at equilibrium, active masses of CaCO, CaO & CO2

Grade:12

2 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
4 years ago
Vikas TU
14149 Points
4 years ago
Dear student 
Active mass of cao is 1
But active mass of co2 is 0.25/22.4
Explanation:
Active mass of solids is taken as unity
For co2 -at starting 0.5 mole is present by stoichiometry we know half mole will dissociate to form half mole of co2 but dissociation is only 50% so .25 moles will be formed
And active mass is no of moles per litre(molarity)

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