What is the correct answer for this question (Question 18)? 0.529 J/g °CQuestion 18The dissolution of NH,Cl in water is an endothermic process. If the initial temperature of water is 25°C, what is the expectedfinal temperature of the aqueous system?lower than 25°Chalf of 25°Chigher than 25°CDstill 25°CQuestion 19In a constant-pressure calorimetry experiment, Jiwon and Jisun dissolved 10.0 g of CaCl2 (MM = 110.das g mol1) in 250.0 g ofwater initially at 20.00°C. As the solid dissolves in water, the temperature rises to 26.73°C. Calculate the enthalpy ofdissolution (AHaissolution) of CaClz in k] mol. Assume that the calorimeter absorbed a negligible amount of heat.

Endothermic reaction is reaction in which energy/heat is consume in reaction.

The dissolution of NH,Cl in water is an endothermic process. If the initial temperature of water is 25°C, what is the expected final temperature of the aqueous system? lower than 25°C half of 25°C C higher than 25°C still 25°C

The dissolution of NH,Cl in water is an endothermic process. If the initial temperature of water is 25°C, what is the expected final temperature of the aqueous system? lower than 25°C half of 25°C C higher than 25°C still 25°C

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter6: Thermochemistry

Section: Chapter Questions

Problem 68E: In a coffee-cup calorimeter, 1.60 g NH4NO3 is mixed with 75.0 g water at an initial temperature of...

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