A fuel contains 25 % n-heptane and 75 % iso-o | vedclass

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Question

(B) The octane number is defined as the percentage by volume of iso-octane in a mixture of iso-octane and $n-$heptane that exhibits the same antiknock

Vedclass · Accepted Answer

$75$

Vedclass · Answer

(B) The octane number is defined as the percentage by volume of iso-octane in a mixture of iso-octane and $n-$heptane that exhibits the same antiknocking properties as the fuel being tested.Given that the fuel contains $25 \%$ $n-$heptane and $75 \%$ iso-octane,the octane number is equal to the percentage of iso-octane.Therefore,the octane number is $75$.

$A$ fuel contains $25 \%$ $n-$heptane and $75 \%$ iso-octane. Its octane number is

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