Question

atomic mass 190.23 8 mol electronegativity 2.20 electron affinity 106.1 kr mol kJ ionization energy 840. mol kJ heat of fusion mol You may find additional useful data in the ALEKS Data tab. Does the following reaction absorb or release energy? 1 O release absorb Can't be decided with the data given. (1) Oshg) + 2 + Os(g) O yes Is it possible to calculate the amount of energy absorbed or released by reaction (1) using only the data above? To no If you answered yes to the previous question, enter the amount of energy absorbed or released by reaction (1): kJ/mol Does the following reaction absorb or release energy? To release (2) Os (g) + Os(g) + a absorb Can't be decided with the data given. yes o no Is it possible to calculate the amount of energy absorbed or released by reaction (2) using only the data above? If you answered yes to the previous question, enter the amount of energy absorbed or released by reaction (2): k/mol |

Answer 1

lonization energy is the energy required to remove valence electron from the ground state of gaseous element. Os (g) + energy -------> Ost (g) + 1e- The energy is absorbed in the above reaction. That is Os (g) + 840 kJ/mol -------> Os+ (g) + le- Electron affinity is the energy released when an electron is added to a neutral molecule in the gaseous state to form negative ion Os (g) + 1e -------> Os (g) + energy Os (g) + 1e -------> Os - (g) + 106.1 kJ/mol The energy is released in the above reaction. (1) Ost (g) + 1e -------> Os (g) + 840 kJ/mol This is reverse reaction of ionization energy In this reaction, energy is released. YES, it is possible to calculate the amount of energy released. Amount of energy released = 840 kJ/mol (2) Os - (g) -------> Os (g) + 1e - - 106.1 kJ/mol This is reverse reaction of electron affinity reaction. In this reaction, energy is absorbed. YES, it is possible to calculate the amount of energy absorbed. Amount of energy absorbed = + 106.1 kJ/mol