how is petroleum gas brought to liquid state?(in terms of change in state of matter)? thank you!
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Answer:
It is extracted from crude oil and natural gas. ... Normally, the gas is stored in liquid form under pressure in a steel container, cylinder or tank. The pressure inside the container will depend on the type of LPG (commercial butane or commercial propane) and the outside temperature.
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Answer:
when it is coolen up
Explanation:
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