An element (X) having same cheical properties as that of hydrogen atom. The diatomic "mole"cule X_(2) is gaseous in nature. The energy required to remove an electron from the outermost shell of (X) atom is 13.5eV. It is also found that the time taken for diffusion of equal volume of gaseous X_(2) and O_(2) at the same pressure is in the ratio sqrt(3):4. the normal freezing point of pure X_(2)O is 0^(@)C. However, on adding 0.02 "mole"s of a non-electrolyte solute to 0.8 "mole"s of X_(2)O, the freezing point of solution is found to be-1.25^(@)C. X-atom also obey Bohr's model. What will be the energy required to excite 5 (X) atoms to second exicted state?

An element (X) having same cheical properties as that of hydrogen atom

1.	An element (X) having same cheical properties as that of hydrogen atom. The diatomic "mole"cule X_(2) is gaseous in nature. The energy required to remove an electron from the outermost shell of (X) atom is 13.5eV. It is also found that the time taken for diffusion of equal volume of gaseous X_(2) and O_(2) at the same pressure is in the ratio sqrt(3):4. the normal freezing point of pure X_(2)O is 0^(@)C. However, on adding 0.02 "mole"s of a non-electrolyte solute to 0.8 "mole"s of X_(2)O, the freezing point of solution is found to be-1.25^(@)C. X-atom also obey Bohr's model. What will be the energy required to excite 5 (X) atoms to second exicted state?
Answer» 30eV 60eV 120eV 15eV Answer :B