Question #86685
When 16.08 g KOH is dissolved in 151.7 g of water in a coffee-cup calorimeter, the temperature rises from 11.54 °C to 26.19 °C. What is the enthalpy change per gram of KOH dissolved in the water? Assume that the solution has a specific heat capacity of 4.18 J/g×K.

A. -183 J/g
B. -639 J/g
C. 639 J/g
D. -1.03×104 J/g
E. -578 J/g
1
Expert's answer
2019-03-21T08:15:57-0400

B. -639 J/g 


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