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Effects of Pressure on State of Matter

When valve of...

Question

When valve of an LPG cylinder is opened, which of the following reason allows the gas to flow to the burner?

A

Increase in pressure

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B

Increase in temperature

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C

Decrease in temperature

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D

Decrease in pressure

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Solution

The correct option is D
Decrease in pressure

LPG stands for Liquefied Petroleum Gas. It is stored under high pressure. When valve of an LPG cylinder is opened, butane vaporises due to sudden decrease in pressure and the gas flows to the burner of the stove as gases flow from high pressure to low pressure.

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