In: Chemistry
in which one of the following substances is the kinetic energy the smallest compared to the intermolecular (interparticle) attractive forces?
H2O(l)
NaCl(s)
CO2(s)
CO(g)
CH3OH(l)
Solids have less kinetic energy compared with liquids and gases
Order of Kinetic enrgy is
Solids < Liquids < Gases
More is the kinetic energy the molecules can easily escape from the solution
Here
CO2 and NaCl has smalles kinetic energy compared with intermolecular forces.(Covalent bonding and Ionic
bonding)
Next comes : H2O and CH3OH --> Among these two H2O has highest intermolecular forces because of two
hydrogen bonds where as in CH3OH only one hydrogen bond is present. and kinetic enrgy greater than solids
Next comes
CO gas ---> More kimetic enrgy and less attractive forces (vanderwaals force)
So answer is CO2 and NaCl solids hasve less kinetic energy compares to thier intermolecular forces