Consider the following reaction for the combustion of octane,
msp;
at volume of oxygen gas at STP would be needed for the complete combustion of
Interpretation:
The volume of oxygen gas at STP should be calculated.
Concept Introduction:
According to ideal gas equation:
Here, P is pressure, V is volume, n is number of moles, R is Universal gas constant and T is temperature.
The value of Universal gas constant can be taken as
Mass of gas can be calculated from number of moles and molar mass as follows:
Here, n is number of moles, m is mass and M is molar mass.
Given Information:
The mass of octane is 10 g.
Calculation:
The balanced chemical reaction is as follows:
From the balanced chemical reaction, 2 mol of octane
Molar mass of octane
Since, 2 mol of octane reacts with 25 mol of O2 thus, 1 mol will react with
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