Question
What would be the approximate heat of formation of $\mathrm{CCl}_{4}$ vapor at $25^{\circ} \mathrm{C}$ and $1 \mathrm{~atm} ?$
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This is done by using the values found in Table 18.3. Show more…
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Methane $\left(\mathrm{CH}_{4}\right)$ has a boiling point of $-164^{\circ} \mathrm{C}$ at 1 $\mathrm{atm}$ and a vapor pressure of 42.8 atm at $-100^{\circ} \mathrm{C}$ . What is the heat of vaporization of $\mathrm{CH}_{4} ?$
How much heat is required to raise the temperature of $215 \mathrm{g} \mathrm{CH}_{3} \mathrm{OH}(1)$ from 20.0 to $30.0^{\circ} \mathrm{C}$ and then vapor- ize it at $30.0^{\circ} \mathrm{C}$ ? Use data from Table 12.3 and a molar heat capacity of $\mathrm{CH}_{3} \mathrm{OH}(1)$ of $81.1 \mathrm{J} \mathrm{mol}^{-1} \mathrm{K}^{-1}$
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