2) A cold pack consists of an inner pouch containing ammonium nitrate, NH4 NO3 (s), and an outer pouch of water. Twisting the pack breaks the inner pouch and allows the water and ammonium nitrate to mix. As the ammonium nitrate dissolves, the temperature of the surroundings decreases. The energy change per mole of ammonium nitrate disso- ciated is 25.7 kJ. a) Classify the reaction as endothermic or exothermic. b) Draw a potential energy diagram for the reaction. Label the change in enthalpy. c) Write a thermochemical equation for this reaction.
2) A cold pack consists of an inner pouch containing ammonium nitrate, NH4 NO3 (s), and an outer pouch of water. Twisting the pack breaks the inner pouch and allows the water and ammonium nitrate to mix. As the ammonium nitrate dissolves, the temperature of the surroundings decreases. The energy change per mole of ammonium nitrate disso- ciated is 25.7 kJ. a) Classify the reaction as endothermic or exothermic. b) Draw a potential energy diagram for the reaction. Label the change in enthalpy. c) Write a thermochemical equation for this reaction.
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter5: Thermochemistry
Section: Chapter Questions
Problem 5.62QE: A 50-mL solution of a dilute AgNO3 solution is added to 100 mL of a base solution in a coffee-cup...
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