Compound / T1 / Ti / T (T1 – Ti) C2H5OH / 13.0 / 24.7 / -11.7

C3H7OH / 17.8 / 24.5 / -6.7

C4H9OH / 22.6 / 23.6 / -1

C5H12 / -7.3 / 23.2 / -30.5

CH3OH / 6.5 / 24.2 / -17.7

C6H14 / 5.6 / 24.1 / -18.5

a. What is the relationship between surface area and LDF (London Dispersion Forces)? Explain why.

b. Two of the liquids, n-pentane and 1-butanol, had nearly the same molar masses, but significantly different T values. Explain the difference in T values of these substances, based on their intermolecular forces. Be sure to compare and contrast: what is the same? Different?

c. Using the T data, list the alcohols in order of increasing intermolecular forces of attraction. (Be sure to give the T values with each compound.) Explain the order of the list by comparing and contrasting the intermolecular forces for the alcohols: what is the same? Different?

d. Which of the alkanes studied has the stronger intermolecular forces of attraction? The weaker? Explain. Compare/contrast intramolecular forces and use the T data.

**the "/" are the separations for the columns