CHEMISTRY · Subjective · A Level · Chemistry · Periodicity and periodic trends · Periodicity and periodic trends
Problem
A mixture contains atoms of fluorine and chlorine. The removal of an electron from each atom of sample absorbs 284 kJ while the addition of an electron to each atom of mixture releases 68.8 kJ. Determine the percentage composition of mixture. Given IE1 for F and Cl are 27.91×10−22 and 20.77×10−22 kJ / atom respectively and EA1 for F and Cl are −5.53×10−22 and −5.78×10−22 kJ / atom respectively.