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19 Nov 2019
Suppose 0.562 grams of graphite is combusted in a calorimeter at 25 degreee C and 0.5 atm pressure. The temperature of the calorimeter rises from 25 degreee C to 27.5 degreee C. If the heat capacity of the calorimeter is 20.7 J/degreee C, what is the heat of reaction? Express sour answer as a thermochemical equation (ie., write the balanced chemical equation). If 42.6 grams of Zn reacts in 75.0 ml of a 1.75 M solution of HCl at 25 degreee C and 0.852 atm according to the following equation: Zn (s) + 2 HCl rightarrow ZnCl_2(aq) + H_2 (g); Delta H = -153.7 kJ/mol Calculate q, w and Delta U for the reaction (1 atm = 101.325 KPa; 1 kJ = 1 kP * L; energy units are Joules).
Suppose 0.562 grams of graphite is combusted in a calorimeter at 25 degreee C and 0.5 atm pressure. The temperature of the calorimeter rises from 25 degreee C to 27.5 degreee C. If the heat capacity of the calorimeter is 20.7 J/degreee C, what is the heat of reaction? Express sour answer as a thermochemical equation (ie., write the balanced chemical equation). If 42.6 grams of Zn reacts in 75.0 ml of a 1.75 M solution of HCl at 25 degreee C and 0.852 atm according to the following equation: Zn (s) + 2 HCl rightarrow ZnCl_2(aq) + H_2 (g); Delta H = -153.7 kJ/mol Calculate q, w and Delta U for the reaction (1 atm = 101.325 KPa; 1 kJ = 1 kP * L; energy units are Joules).
Reid WolffLv2
16 Feb 2019