Respuesta :

Answer : The limiting reagent is [tex]O_2[/tex]

Solution : Given,

Moles of methane = 2.8 moles

Moles of [tex]O_2[/tex] = 5 moles

Now we have to calculate the limiting and excess reagent.

The balanced chemical reaction is,

[tex]CH_4+2O_2\rightarrow CO_2+2H_2O[/tex]

From the balanced reaction we conclude that

As, 2 mole of [tex]O_2[/tex] react with 1 mole of [tex]CH_4[/tex]

So, 5 moles of [tex]O_2[/tex] react with [tex]\frac{5}{2}=2.5[/tex] moles of [tex]CH_4[/tex]

From this we conclude that, [tex]CH_4[/tex] is an excess reagent because the given moles are greater than the required moles and [tex]O_2[/tex] is a limiting reagent and it limits the formation of product.

Hence, the limiting reagent is [tex]O_2[/tex]