Assume that ethanol (C2H5OH) of 155 grams at the temperature of 25 degrees Celsius is mixed with 250 grams of ethanol(C2H5OH) at 89 degrees Celsius at constant atmospheric pressure in a thermally insulated vessel. Determine the change in Ssys for the process if specific heat capacity for ethanol = 2.42 J/g K. express your answer in units of J/K