If two solutions at the same temperature are mixed and the resulting solution is cooler than...
If two solutions at the same temperature are mixed and the resulting solution is cooler than the original temperature of the two solutions, what is the most likely explanation for the temperature change?
Homework Answers
When solution A is mixed with solution B, the interactions in the mixture AB are different than the interactions in pure A or pure B. These interactions refers to intermolecular interactions. Since the interactions are different, heat is either absorbed or evolved. This heat is called enthalpy of mixing. Due to this enthalpy of mixing, the temperature of mixture AB is different from the temperature of pure A or pure B.
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If two solutions at the same temperature are mixed and the
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Part 2, find AH°rxn =kJ/mol Two solutions are mixed in a coffee cup calorimeter both are...
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The solutions are mixed with H2O
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D Question 3 4 pts Part 1 (find q in kJ) Two solutions are mixed in a coffee cup calorimeter, both are initially at 22.60°C. When a 100.0 mL volume of 1.00 M AgNO3 solution is mixed with a 100.0 mL sample of 0.500 M NaCl solution, the temperature in the calorimeter rises to 28.30°C (assume no heat is lost to the surroundings and the density and heat capacity of the solutions is the same as that of water). Determine...
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