Liquefied natural gas, LNG, is to be shipped from the Alaskan Kenai Peninsula by an ocean carrier to processing plant on Yaquina Bay, Oregon. The molar composition of the commercial LNG is LNG composition mol % Mw (g/mol) Methane, CH4 93.5 Ethane, C2H6 4.6 Propane, CSH8 1.2 44 Carbon dioxide, CO2 0.7 44 Determine a) The weight fraction of ethane b) The average molecular weight of the LNG mixture c) The density of the gas mixture when heated to 207 K and at 1.4 x105 Pa

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