Question on the image

The mass of carbon dioxide required is 308 g

Explanation:

The number of moles is defined as the ratio of the mass of a substance to its molar mass.

The equation used is:

......(1)

Given mass of octane = 100.0 g

Molar mass of octane = 114.23 g/mol

Putting values in equation 1, we get:

For the given chemical reaction:

By the stoichiometry of the reaction:

2 moles of octane produces 16 moles of carbon dioxide

So, 0.875 moles of octane will produce = of carbon dioxide

Molar mass of carbon dioxide = 44 g/mol

Plugging values in equation 1:

Hence, the mass of carbon dioxide required is 308 g

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante