When 0.157 mol of XH3(aq) is reacted with excess YCl(aq), the temperature of the water increases by 21.5°C. What is the enthalpy of reaction for the thermochemical equation: YCI( aq), + XH3(aq)® XY4Cl(aq)? Assume that the heat capacity of the system is 321.4 J/°C. Question 4 options: 6.91 kJ -44.0 kJ -1.08 kJ 44.0 kJ -6.91 kJ

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