The reactionSb_2 S_3(s) + 3H_2(g) iff 2Sb(s) + 3H_2S(g)was studied by analysing the equilibriuin mixture for the amount of H S produced. A vessel whose volume was 2.5 litre was filled with 0.01 mole of Sb_2S_3and 0.01 mole of H_2S . After the mixture came to equilibriuin in the closed vessel at 440^@C , the gaseous mixture was removed and the H_2S was dissolved in water, Sufficient Pb^(2+)ions were added to react completely with the H_2Sto precipitate PbS. If 1.029 g of PbS was obtained, what is the value of K_cat 440^@C?

The reactionSb_2 S_3(s) + 3H_2(g) iff 2Sb(s) + 3H_2S(g)was studied by

1.	The reactionSb_2 S_3(s) + 3H_2(g) iff 2Sb(s) + 3H_2S(g)was studied by analysing the equilibriuin mixture for the amount of H S produced. A vessel whose volume was 2.5 litre was filled with 0.01 mole of Sb_2S_3and 0.01 mole of H_2S . After the mixture came to equilibriuin in the closed vessel at 440^@C , the gaseous mixture was removed and the H_2S was dissolved in water, Sufficient Pb^(2+)ions were added to react completely with the H_2Sto precipitate PbS. If 1.029 g of PbS was obtained, what is the value of K_cat 440^@C?
Answer» ANSWER :0.43