Homework Help: ap chemistry help!!!!

Posted by harry on Wednesday, October 24, 2012 at 11:50pm.

Ive been absent from class because of the flu so i don't have a clue how to figure these out! Help! due tomorrow at 12!

1).Suppose that 135 g of ethanol at 23◦C is mixed with 255 g of ethanol at 75◦C at constant atmospheric pressure in a thermally insulated vessel. What is the ∆Ssys for the process? The specific heat capacity for ethanol is 2.42 J/g K.
Answer in units of J/K

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