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**Problem**: The rate of disappearance of HBr in the gas phase reaction2HBr (g) → H 2 (g) + Br2 (g) is 0.602 M s-1 at 150°C. The rate of appearance of Br2 is _____ M s-1 . a) 1.20b) 0.602c) 0.0906d) 0.301e) 0.151

###### FREE Expert Solution

###### FREE Expert Solution

We’re being asked to **calculate the rate of appearance of Br _{2}**

**for the following reaction:**

2HBr (g) → H _{2} (g) $+$ Br_{2} (g)

Recall that for a reaction **aA → bB**, the ** rate of a reaction** is given by:

$\overline{){\mathbf{Rate}}{\mathbf{=}}{\mathbf{-}}\frac{\mathbf{1}}{\mathbf{a}}\frac{\mathbf{\Delta}\mathbf{\left[}\mathbf{A}\mathbf{\right]}}{\mathbf{\Delta t}}{\mathbf{=}}\frac{\mathbf{1}}{\mathbf{b}}\frac{\mathbf{\Delta}\mathbf{\left[}\mathbf{B}\mathbf{\right]}}{\mathbf{\Delta t}}}$

where:

**Δ[A]** = change in concentration of reactants or products (in mol/L or M)

**Δt** = change in time

###### Problem Details

The rate of disappearance of HBr in the gas phase reaction

2HBr (g) → H _{2} (g) + Br_{2} (g) is 0.602 M s^{-1 }at 150°C. The rate of appearance of Br_{2} is _____ M s^{-1} .

a) 1.20

b) 0.602

c) 0.0906

d) 0.301

e) 0.151

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Our tutors have indicated that to solve this problem you will need to apply the Average Rate of Reaction concept. You can view video lessons to learn Average Rate of Reaction Or if you need more Average Rate of Reaction practice, you can also practice Average Rate of Reaction practice problems .

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The rate of disappearance of HBr in the gas phase reaction2H...
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Based on our data, we think this problem is relevant for Professor Marin's class at UCF.