viscosity and surface tension are both related to intermolecularforces (IMFs)
pentane is nonpolar and cannot H-bond, so only LDF is possible(London Dispersion Force)
pentanal is polar, but cannot H-bond => (Dipole-Dipole) pentanol has an OH group, so it can H-
bond => (HydrogenBonding) With higher IMFs, you get greater surface tension and
greaterviscosity (since the liquid molecules are more attracted to eachother) In order of
decreasing IMF: (and thus decreasing viscosity/surfacetension) pentanol pentanal pentane
Solution
viscosity and surface tension are both related to intermolecularforces (IMFs)
pentane is nonpolar and cannot H-bond, so only LDF is possible(London Dispersion Force)
pentanal is polar, but cannot H-bond => (Dipole-Dipole) pentanol has an OH group, so it can H-
bond => (HydrogenBonding) With higher IMFs, you get greater surface tension and
greaterviscosity (since the liquid molecules are more attracted to eachother) In order of
decreasing IMF: (and thus decreasing viscosity/surfacetension) pentanol pentanal pentane.
viscosity and surface tension are both related to.pdf
1. viscosity and surface tension are both related to intermolecularforces (IMFs)
pentane is nonpolar and cannot H-bond, so only LDF is possible(London Dispersion Force)
pentanal is polar, but cannot H-bond => (Dipole-Dipole) pentanol has an OH group, so it can H-
bond => (HydrogenBonding) With higher IMFs, you get greater surface tension and
greaterviscosity (since the liquid molecules are more attracted to eachother) In order of
decreasing IMF: (and thus decreasing viscosity/surfacetension) pentanol pentanal pentane
Solution
viscosity and surface tension are both related to intermolecularforces (IMFs)
pentane is nonpolar and cannot H-bond, so only LDF is possible(London Dispersion Force)
pentanal is polar, but cannot H-bond => (Dipole-Dipole) pentanol has an OH group, so it can H-
bond => (HydrogenBonding) With higher IMFs, you get greater surface tension and
greaterviscosity (since the liquid molecules are more attracted to eachother) In order of
decreasing IMF: (and thus decreasing viscosity/surfacetension) pentanol pentanal pentane
