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A gas can be liquefied at temperature T ...

A gas can be liquefied at temperature T and pressure P provided

A

`T = T_(c ) and P lt P_(c )`

B

`T lt T_(c ) and P gt P_(c )`

C

`T gt T_(c ) and Pgt P_(c )`

D

`T gt T_(c ) and P lt P_(c )`

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