Respuesta :
Answer:
A. BrF3 > PF5 > CF4
Explanation:
The vapor pressure of a gas is the number of times a given volume of the gas is as heavy as the same volume of hydrogen at a particular temperature and pressure.
The vapor pressure of a gas is related to its relative molecular mass as shown in the formulae:
Vapor pressure =1/2 * relative molecular mass of the gas.
In the question therefore, calculate the relative molecular mass of each of the substance and divide by two, you will get the vapor pressure.
V. P (PF5) = 126/2 = 63
V. P ( BrF3) = 136.9/2 = 68.45
V. P(CF4) = 88/2 = 44
In order of decreasing vapor pressure, BrF3 has high vapor pressure, followed by PF5 and then CF4.
BrF3 > PF5 > CF4
The branch of science which deals with the chemical and bonds is called chemistry.
The correct answer is [tex]BrF_3 > PF_5 > CF_4[/tex]
Numerically the vapor pressure is defined as the gas is the number of times a given volume of the gas is as heavy as the same volume of hydrogen at a particular temperature and pressure.
[tex]Vapor \ pressure =\frac{1}{2} * relative\ molecular\ mass\ of \ the\ gas.[/tex]
The molecular mass of the compound is as follows:-
- V. P (PF5) = [tex]\frac{126}{2} = 63[/tex]
- V. P ( BrF3) = [tex]\frac{136.9}{2} = 68.45[/tex]
- V. P(CF4) = [tex]\frac{88}{2} = 44[/tex]
Hence, according to the data value that came in above the order of the molecule is BrF3 > PF5 > CF4.
For more information, refer to the link:-
https://brainly.com/question/19524691
