The rate of disappearance of hbr in the gas phase reaction2hbr(g) → h2(g) + br2(g)is 0.301 m s-1 at 150°c. the rate of appearance of br2 is m s-1.0.5490.1510.09060.6021.66

0.151

Explanation:

Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.

The rate in terms of reactants is given as negative as the concentration of reactants is decreasing with time whereas the rate in terms of products is given as positive as the concentration of products is increasing with time.

Given:

Putting in the values we get:

Thus the rate of appearance of is 0.151

c is the answer because when something is left after something evaporates that shows the chemical change.

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