Advertisements
Advertisements
Question
How does electronegativity differ from electron gain enthalpy?
Solution 1
Electron gain enthalpy is the enthalpy change that takes place when an electron is added to a neutral gaseous atom to form an anion. It can be negative or positive depending upon whether the electron is added or removed. An element has a constant value of the electron gain enthalpy that can be measured experimentally
Solution 2
Electron gain enthalpy is the tendency of an atom to attract outside electron. It is the property of an isolated atom.
APPEARS IN
RELATED QUESTIONS
Although both CO2 and H2O are triatomic molecules, the shape of H2O molecule is bent while that of CO2 is linear. Explain this on the basis of dipole moment.
Write the significance/applications of dipole moment.
Define electronegativity.
Explain with the help of suitable example polar covalent bond.
Arrange the bonds in order of increasing ionic character in the molecules: LiF, K2O, N2, SO2 and ClF3.
Which out of NH3 and NF3 has higher dipole moment and why?
Polarity in a molecule and hence the dipole moment depends primarily on electronegativity of the constituent atoms and shape of a molecule. Which of the following has the highest dipole moment?
Arrange the following bonds in order of increasing ionic character giving reason.
\[\ce{N - H, F - H, C - H}\] and \[\ce{O - H}\]
Which of the following is CORRECTLY matched?
If AB4 molecule is a polar molecule, a possible geometry of AB4 is ______.
Dipole moment of HX is 2.59 × 10−30 coulomb-metre. Bond length of HX is 1.39 Å. The ionic character of molecule is ______%.
The dipole moments of the given molecules are such that ______.
The observed dipole-moment of HCl molecule is 1.03 D. If \[\ce{H - Cl}\] bond distance is 1.275 Å and electronic charge is 4.8 × 10-10 esu. What is the percent polarity of HCl?
The dipole moments of CCl4, CHCl3 and CH4 are in the order: