Chapter 10: Q10.3-41 E (page 587)
Use the information to estimate the boiling point of water in Denver when the atmospheric pressure is \(83.3\)kPa
The boiling point of water in Denver is\({\rm{9}}{{\rm{5}}^{\rm{^\circ }}}{\rm{C}}\).
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For acetone (CH3)2CO, the normal boiling point is 56.5 °C and the enthalpy of vaporization is 31.3 kJ/mol.What is the vapor pressure of acetone at 25.0°C?
Identify the type of crystalline solid (metallic, network covalent, ionic, or molecular) formed by each of the following substances:
(a) SiO2
(b) KCl
(c) Cu
(d) CO2
(e) C(Diamond)
(f) BaSO4
(g) NH3
(h) NH4F
(i) C2H5OH
From the phase diagram for carbon dioxide determine the state of CO2 at:
\(\begin{aligned}{\left( {\rm{a}} \right){\rm{ 20 ^\circ C and 1000 kPa}}}\\{\left( {\rm{b}} \right){\rm{ 10 ^\circ C and 2000 kPa}}}\\{\left( {\rm{c}} \right){\rm{ 10 ^\circ C and 100 kPa}}}\\{\left( {\rm{d}} \right){\rm{ - 40 ^\circ C and 500 kPa}}}\\{\left( {\rm{e}} \right){\rm{ - 80 ^\circ C and 1500 kPa}}}\\{\left( {\rm{f}} \right){\rm{ - 80 ^\circ C and 10 kPa}}}\end{aligned}\)
At \({20^\circ }{\rm{C}}\), the vapor pressures of several alcohols are given in this table. Explain these vapor pressures in terms of types and extents of IMFs for these alcohols:
It is often recommended that you let your car engine run idle to warm up before driving, especially on cold winter days. While the benefit of prolonged idling is dubious, it is certainly true that a warm engine is more fuel efficient than a cold one. Explain the reason for this.
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