Mehul
Ans.
Octane No.:- Octane number is defined as the percentage, by volume, of iso-octane in the
mixture of iso-octane and h-heptane. It is the measure of rating of Spark Ignition engine.
Octane No. = (volume of Iso-Octane in unit quantity) / (volume of mixture of Iso-Octane + H-hapteane in unit quantity) * 100
Cetane No.:- Cetane number is defined as the percentage, by volume, of n-cetane in the mixture of
n-cetane and alpha methyl naphthalene. It is the measure of rating of Compression Ignition engine.
Cetane No. = (volume of n-cetane in unit quantity) / (volume of mixture of n-cetane + alpha methyl naphalene in unit quantity) * 100
Octane No.:- Octane number is defined as the percentage, by volume, of iso-octane in the
mixture of iso-octane and h-heptane. It is the measure of rating of Spark Ignition engine.
Octane No. = (volume of Iso-Octane in unit quantity) / (volume of mixture of Iso-Octane + H-hapteane in unit quantity) * 100
Cetane No.:- Cetane number is defined as the percentage, by volume, of n-cetane in the mixture of
n-cetane and alpha methyl naphthalene. It is the measure of rating of Compression Ignition engine.
Cetane No. = (volume of n-cetane in unit quantity) / (volume of mixture of n-cetane + alpha methyl naphalene in unit quantity) * 100
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