<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
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Answer:
Stone A
Explanation:
Measuring density is an easiest way to determine if two similar looking substances are same or not. Here also we need to perform the density test for each stone that is suspected to be fake diamond. We will calculate the density of each stone and compare it with the density of original diamond.
Density is calculated using the formula
It has been given in the question that both the substances have same volume of 0.15 
.
Density of stone A = 
= 3.47 
or after rounding off we get 3.5
Density of stone B = 
= 2.8
It is clear from the above calculation that the stone A has same density as the diamond but stone B lacks behind in density.
So, stone A could be the real diamond.
Answer:
K+
Explanation:
Potassium(an alkali metal) belongs to element in group 1 and period 4 in the periodic table. It has to release one electron to attain noble configuration.
Answer:
Caesium and Barium
Explanation:
Once again, if you look at the periodic table, you can see that Caesium and Barium are in the same period (Period 6).
<em>Feel free to mark this as brainliest! :D</em>
