ALEV CHEM BORN-HABER CYCLE EXAM QUESTIONS WITH CORRECT ANSWERS 100% SOLVED

ALEV CHEM BORN-HABER CYCLE EXAM QUESTIONS WITH CORRECT ANSWERS 100% SOLVED Define the term electron affinity for chlorine The enthalpy change / heat energy change / ΔH for the formation of one mole of (chloride) ions from (chlorine) atoms A 5.00 g sample of potassium chloride was added to 50.0 g of water initially at 20.0 °C. The mixture was stirred and as the potassium chloride dissolved, the temperature of the solution decreased. Start a clock when KCl is added to water Record the temperature every subsequent minute for about 5 minutes Allow record the temperature at regular time intervals untilsome time after all the solid has dissolved for M2 Plot a graph of temperature vs time Extrapolate back to time of mixing = 0 and determine the temperature The temperature of the water decreased to 14.6 °C. Calculate a value, in kJ mol−1, for the enthalpy of solution of potassium chloride. You should assume that only the 50.0 g of water changes in temperature and that the specific heat capacity of water is 4.18 J K−1 g−1