Author Question: The relationship between the vapor pressure of a liquid and temperature can be expressed by the ... (Read 27 times)

ss2343 · **on:** Jul 8, 2021

Question 1

The property that causes water to have a concave meniscus but mercury to have a convex meniscus is ________.
◦ heat of vaporization
◦ sublimation
◦ surface tension
◦ vapor pressure
◦ critical point

Question 2

The relationship between the vapor pressure of a liquid and temperature can be expressed by the Clausius-Clapeyron equation:

ln[P₂/P₁] = [Δ_vapH/R] × [1/T₁ - 1/T₂]

Ethanol (C₂H₅OH) has a normal boiling point of 78.3 °C and, with Δ_vapH = 39.3 kJ/mol. What is the vapor pressure of ethanol at 50.0 °C?
◦ 118 Torr
◦ 234 Torr
◦ 354 Torr
◦ 485 Torr
◦ 670 Torr

Yixagurpuldink · **Reply #1 on:** Jul 8, 2021

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Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.

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