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Appsbible myHomework Stud... SST Plagiarism Checker... Google Scholar Paraphrasing Tool 3 Resoomers UG Moodle (2021/2022) Qunction 1 Incomplete answer Thermodynamics Data Sheet Marked out of 20.00 Table 1. Mass, volume, and temperatures Rag question Ammonium chloride 1.40 1.33 Potassium douride 1.47 1.48 25 25 25 25 Mass of salt, Volume of water, ml Initial temperature of H:0, T. (°C) Time Mass of salt, Volume of water, ml Initial temperature of H30, T. (°C) Time 28.0 28.0 28.0 28.0 0:00 30.0 0:10 0:20 0:30 0:40 0:50 1:00 1:10 1:20 1:30 1:40 1:50 2.00 Temperature, Temperature, °C, Trial 1 °C, Trial 2 28.0 28.0 27.5 27.0 27.0 26.0 26.5 25.5 26.5 25.5 26.0 25.5 26.0 25.5 26.0 25.5 26.0 25.5 26.0 25.5 26.0 25.5 26.0 25.5 26.0 25.5 0:00 0:10 0:20 0:30 0:40 0:50 1:00 1:10 1:20 1:30 1:40 1:50 - 2:00 Temperature, Temperature, °C, Trial 1 °C, Trial 2 28.5 28.5 29.0 29.5 30.5 30.5 31.0 31.0 31.0 310 30.5 31.0 30.5 31.0 310 30.5 31.0 30.5 30.5 30.3 30.5 30.5 30.5 30.5 30.5 Exercises Use the data provided to determine thermodynamic quantities for ammonium chloride Enter all numerical responses to 3 ignificant figures do NOT include Q PM Lenovo C F F2 F3 F9

dle (2021/2022) 0:50 0:50 1:00 1:10 1:20 1:30 1:40 1:50 2:00 26.0 26.0 26.0 26.0 26.0 26.0 26.0 26.0 25.5 25.5 25.5 25.5 25.5 25.5 25.5 25.5 1:00 1:10 1:20 1:30 1:40 1:50 2:00 31.0 31.0 31.0 31.0 31.0 30.5 30.5 30.5 30.5 30.5 30.5 30.5 30.5 30.5 30.5 30.5 Exercises Use the data provided to determine thermodynamic quantities for ammonium chloride, Enter all numerical responses to 3 significant figures, do NOT include units. moles. 1. The average number of moles of ammonium chloride used in the experiment 2. The average mass of solution used 9 3. The average heat transferred during the dissolution reaction kJ/mol 4. The average enthalpy change for the dissolution of ammonium chloride J/K moi 5. The standard entropy change for the dissolution of ammonium chloride J/mol 6. The average Gibb's Energy change for the dissolution of ammonium chloride Table 2 - Thermodynamic data from textbook AH(kJ/mol) AG (kJ/mol) sº (J/K.mol) 94.6 -202.8 NH 3144 -79.3 113.4 - 132.5 NH, tạo 1312 56.5 -1672 CI -3326 -278.8 -13.8 -5378 66.6 -5763 KF -2524 -283.3 102.5 MA vo

3144 -202.8 94.6 NHACI NHA (ng) - 132.5 -793 113.4 Cl (aq) 167.2 -131.2 56.5 F (20) 3326 -278.8 -13.8 KF 5763 -537.8 66.6 K+ -252.4 -283.3 102.5 Use the standard thermodynamic data provided in table 2 to determine the standard enthalpy change KJ/mol and Gibb's free energy change TJ/mol for the dissolution of ammonium chloride Discussion Questions 1. Is the system endothermic or exothermicz 2 Comment on the spontaneity of the reaction at room temperature reaction is spontaneous at room temperature 3. Based on your calculated change in entropy does the dissolution of ammonium chloride create more order or disorder? more disorders 2 is this salt soluble at all temperatures? State yes or no 5. If the sait is not soluble at all temperatures calculate the temperature above or below which the salt will not dissolve indicate if the solid will dissolve above or below this temperature ji 24 카 u JO