What is the ΔSsys for the process?

Suppose that 145 g of ethanol at 24◦C is mixed with 225 g of ethanol at 89 ◦C at constant

atmospheric pressure in a thermally insulated vessel. What is the ΔSsys 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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