The energy change in kilojoules per mole when lithium atoms lose an electron to bromine atoms to form isolated `Li^(+)` and `Br` ions. [The `Ei` for `Li(g)` is `+520(kJ)/(mol)`; the `Eea` for `Br(g)` is `-325(kJ)/(mol)`.]

The ionisation energy of Li is 500 KJ/mole. The amount of energy required to convert 70 mg of Li atoms in gaseous state into Li^(+) ion (in KJ) is

How much energy in joules must be needed to convert all the atoms of sodium to sodium ions present in 4.6 mg of sodium vapours? Ionization enthalpy of sodium is 495 "kJ mol"^(-1)

Compute the heat of formation of liquid methyl alcohol in kilojoules per mole, using the following data. Heat of vapourisation of liquid methyl alcohol= 38 kJ/mol. Heat of formation of gaseous atoms from the elements in their standard states, H= 218kJ/mol, C= 715 kJ/mol, O= 249 kJ/mol. Average bond energies, C-H = 415 kJ/mol, C-O = 365 kJ/mol, O-H= 463 kJ/mol

On absorbing light of wavelength 3800 A, bromine molecule undergoes dissociation and form atoms. The kinetic energy of one bromine atom assuming that one quantum of radiation is absorbed by each molecule would be (Bond energy of Br_2=190(kJ) / (mol)

Calculate the energy in joules required to convert all the atoms of sodium to sodium ions present in 2.3 mg of sodium vapours? Ionization enthalpy of sodium is 495 kJ "mol"^(-1 ) (Atomic mass of Na = 23)

From N atoms of an element A , when half the atoms transfer one electron to the another atom. 405 kJ mol^(-1) of energy was found to be consumed. An additional energy of 745 kJ mol^(-1) was further required to convert all the A^(ɵ) ions to A^(o+) . Calculate the ionisation energy and the electron gain enthalpy of atom A in eV (1 eV = 96.48 kJ) .

What will be the boliling point of bromine when 174.5 mg of octa-atomic sulphur is added to 78 g of bromine? k'_(b) for Br_(2) is 5.2 Kmol^(-1) kg and b.pt. of Br_(2) " is " 332.15 K

What will be the boliling point of bromine when 174.5 mg of octa-atomic sulphur is added to 78 g of bromine? k'_(b) for Br_(2) is 5.2 Kmol^(-1) kg and b.pt. of Br_(2) " is " 332.15 K

Compute the heat of formation of liquid methyl alcohol in kilojoule per mol using the following data. Heat of vaporisation of liquid methyl alcohol =38kJ//mol . Heat of formation of gaseous atoms from the elements in their standard states :H=218kJ // mol, C=715kJ //mol, O=249kJ //mol. Average bond energies : C-H415kJ//mol, C-O 356kJ//mol, O-H 463kJ //mol.

Give one word or a phrase for the following statement: The energy released when an electron is added to a neutral gaseous isolated atom to form a negatively charged ion.