Question

50g Caco, is allowed to dissociated in
22.4 lit vessel at 819°C. If 50% of Caco, is
left at equilibrium, active masses of Cacoz,
CaO & CO, resepectively are
1) 25g ; 14 g; 1/22.4 mollit
2) 1; 1; 1/89.6 mollit
3) 25 ; 14; 1/89.6 mol/lit
4) 1;1;1
lood vessel​

Answer 1

Answer:

active mass of caco3 is 1

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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