<u>Substances in order of increasing vapor pressure at a given temperature is </u><u>SF4 < SF6 < SiH4</u>
- The substance with the lowest vapor pressure will also have the greatest boiling point.
- A liquid attribute associated with evaporation is vapor pressure.
- The distribution of kinetic energy among the molecules in a liquid (or any substance) is influenced by the system's temperature.
<h3>How do you determine vapor pressure?</h3>
- Vapor pressure in chemistry is the force that an evaporating substance exerts against the walls of a sealed container (converts to a gas).
- Use the Clausius-Clapeyron equation to determine the vapor pressure at a specific temperature: ln(P1/P2) = (Hvap/R)((1/T2) - (1/T1)
Which has highest vapor pressure?
- At the normal boiling point of a liquid, the vapor pressure is equal to the standard atmospheric pressure defined as 1 atmosphere, 760 Torr, 101.325 kPa, or 14.69595 psi.
- For example, at any given temperature, methyl chloride has the highest vapor pressure of any of the liquids in the chart.
Learn more about vapor pressure
brainly.com/question/2510654
#SPJ4
Affects populations,
Occurs when there is genetic variation
Selects organisms with certain traits to survive.
Answer:
do you have an english version
Explanation:
Answer:
The temperature should be higher than 437.9 Kelvin (or 164.75 °C) to be spontaneous
Explanation:
<u>Step 1:</u> Data given
ΔH∘=20.1 kJ/mol
ΔS is 45.9 J/K
<u>Step 2:</u> When is the reaction spontaneous
Consider temperature and pressure = constant.
The conditions for spontaneous reactions are:
ΔH <0
ΔS > 0
ΔG <0 The reaction is spontaneous at all temperatures
ΔH <0
ΔS <0
ΔG <0 The reaction is spontaneous at low temperatures ( ΔH - T*ΔS <0)
ΔH >0
ΔS >0
ΔG <0 The reaction is spontaneous at high temperatures ( ΔH - T*ΔS <0)
<u>Step 3:</u> Calculate the temperature
ΔG <0 = ΔH - T*ΔS
T*ΔS > ΔH
T > ΔH/ΔS
In this situation:
T > (20100 J)/(45.9 J/K)
T > 437.9 K
T > 164.75 °C
The temperature should be higher than 437.9 Kelvin (or 164.75 °C) to be spontaneous
