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The boiling point of a liquid is 68.9^(@...

The boiling point of a liquid is `68.9^(@)C`. Calculate its aproximate critical temperature.

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Verified by Experts

According to Guldberg's rule,
`T_(b)=(2)/(3)T_(c )" "`
or `" " T_(c )=(3)/(2)xxT_(b)=(3)/(2)xx(68.9+273" K")=512.85" K"=(512.85-273)^(@)C=239.85^(@)C`.
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