Question

Why is propane used to fill lighter

Answer 1

Answer:

Explanation:

The reason probably has to do with the vapor pressure of each at room temperature. At room temperature (25°C), the vapor pressure for butane is 35.4 psia. For propane, it's 135.7 psia. So the cost of producing a lighter that can safely contain propane is likely higher than the cost of producing a butane lighter.

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