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Stoichiometric Calculations

A gaseous rea...

Question

A gaseous reaction,
$A_{2} (g) \to B (g) + \frac{1}{2} C (g)$
shows increase in pressure from $100$ mm to $120$ mm in $5$ minutes. The rate of disapperance of $A_{2}$ is

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Solution

Here rate of the reaction= $\frac{change in pressure}{t i m e} = \frac{20 mm of Hg}{5}$
Rate of disappearance of $A_{2} = - 4 mm of Hg / m i n$

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