Since the hydrogen bonds between individual water molecules are aligned away from an alkane molecule, the coexistence of an alkane and water leads to an increase in molecular order (a reduction in entropy).
sˈɪns ðə hˈaɪdɹədʒən bˈɑːndz bᵻtwˌiːn ˌɪndᵻvˈɪdʒuːəl wˈɔːɾɚ mˈɑːlɪkjˌuːlz ɑːɹ ɐlˈaɪnd ɐwˈeɪ fɹʌm ɐn ˈælkeɪn mˈɑːlɪkjˌuːl, ðə kˌoʊɛɡzˈɪstəns əvən ˈælkeɪn ænd wˈɔːɾɚ lˈiːdz tʊ ɐn ˈɪŋkɹiːs ɪn məlˈɛkjʊlɚɹ ˈɔːɹdɚ ɐ ɹᵻdˈʌkʃən ɪn ˈɛntɹəpi.