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vapor pressure

daniellao
in Chemistry

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Naphthalene, a substance present in some mothballs, has an enthalpy of vaporization of 49.4kl/mol. If the vapor pressure of naphthalene is .300mmhg at 298K, what is the temp at which the vapor pressure is 7.6x10^2mmhg?

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as of so far i tried to put the number into the equation lnp2/p1=hvap/R(1/t1-1/t2)

and what happened?

 

that;s all you need to do. plug the numbers in and solve the equation for T2

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