Chemistry: What type of heat transfer drives plate tectonics?

What type of heat transfer drives plate tectonics?

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10.03.2022

Answer : The mass of CO_2 produced form the combustion is, 16.43 kg

Explanation :

Density : It is defined as the mass contained per unit volume.

Formula used for density :

$Density=\frac{Mass}{Volume}$

First we have to calculate the mass of octane.

Given :

Density of octane = 0.703 g/mL

Volume = 2.00 gallons = 7570 mL

conversion used : 1 gallon = 3785 mL

Now put all the given values in the above formula, we get:

$0.703g/mL=\frac{Mass}{7570mL}$

Mass=5321.71g

Now we have to calculate the moles of octane.

$\text{Moles of octane}=\frac{\text{Mass of octane}}{\text{Molar mass of octane}}$

Molar mass of octane = 114 g/mole

$\text{Moles of octane}=\frac{5321.71g}{114g/mole}=46.68mole$

Now we have to calculate the moles of CO_2 .

The balanced chemical combustion reaction of octane will be:

$2C_8H_{18}+25O_2\rightarrow 16CO_2+18H_2O$

From the balanced chemical reaction we conclude that:

As, 2 moles of $C_8H_{18}$ react to give 16 moles of CO_2

So, 46.68 moles of $C_8H_{18}$ react to give $\frac{46.68}{2}\times 16=373.44$ moles of CO_2

Now we have to calculate the mass of CO_2 .

$\text{ Mass of }CO_2=\text{ Moles of }CO_2\times \text{ Molar mass of }CO_2$

Molar mass of CO_2 = 44 g/mol

$\text{ Mass of }CO_2=(373.44moles)\times (44g/mole)=16431.36g=16.43kg$

Thus, the mass of CO_2 produced form the combustion is, 16.43 kg

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