# Questions tagged [reaction-order]

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### Why is reaction rate proportional to the order of reactants? [duplicate]

I know that for some elementary reaction $m\text{A}+n\text{B}\rightarrow\text{C}$, the rate of reaction is given by $-\frac{\text{dA}}{\text{dt}}=k[\text{A}]^m[\text{B}]^n$. Now if we consider the ...
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### Is my derivation for the reaction orders of a single-step reaction valid?

Recently in my chemistry class I learned about reaction orders. For some reaction $\ce{r_1A1}+\ce{r_2A2}+\dots+\ce{r_nA_n}\rightarrow\ce{B}$, $m_1,\dots{,m_n}$ are the orders of that reaction. The ...
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### Why is concentration never zero for zero order reactions? [closed]

By formula of zero order reaction:- $$C_t=C_o-kt$$ The concentration should be zero at $t=C_0/k$. But in some books and websites I saw that graph between concentration and time don't touch the X-axis. ...
270 views

### Why is the decomposition of gas on a metal surface at high pressure considered a 0 order reaction?

My textbook says that when ammonia decomposes on a platinum surface at high pressure, the reaction is 0-order. This is because at high pressures, the metal surface gets saturated with ammonia ...
1 vote
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### How to interpret gas chromatography results?

I am having trouble interpreting gas chromatography (GC) results for the production of ethyl acetate from acetic acid and ethanol. I am trying to find the reaction order from these results, as well as ...
83 views

### How to write a rate expression when one reactant is not soluble?

For a chemistry experiment, I would like to determine the rate expression for the reaction between zinc and hydrochloric acid. Given that zinc is not soluble in the water, would I use a "false&...
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### Can iodine replace other halogen as well?

While reading about halogen family I encountered the reaction: $$\ce{NaClO3 + I2 -> NaIO3 + Cl2}$$ I know that that the oxidizing tendency of halogens decreases down the group, so I think that the ...
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### Find order of reaction 2A → B + C

Derive the integrated rate expression for a reaction of type: $$\ce{2A -> B + C}$$ I first need to determine the order of the reaction in order to find integrated rate law of that particular order....
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What is the Rate law of the reaction below? $$\ce{4 HBr + O2 -> 2 H2O + 2 Br2}$$ How do we approach finding the rate law of a reaction? Can this be found out only through experiments?