1 ev/atom is equal to   

In given all choice, Both A & B Ionisation energy values are often expressed in K.cal/g.atom or Kj/g.atom or KJ/mol or 1eV/atom  , 1Ev = 23.06kcal/mol=96.39kj/mol.4.

What is 1 eV/atom?

The term 1 eV/atom represents the energy of 1 electron volt per atom, a measure of energy commonly used in atomic, molecular, and solid-state physics. To understand this, let's break it down:

What is 1 eV?

• 1 eV (electron volt) is a unit of energy defined as the amount of energy gained or lost by an electron when it moves through an electric potential difference of 1 volt.
• In scientific terms:
  1eV is equal to = 1.602 × 10⁻¹⁹ joules

What Does "eV/atom" Mean?

• eV/atom specifies the energy per single atom in a given context. For example, it could refer to the binding energy of an atom in a molecule, the energy required to ionize it, or the energy associated with a chemical reaction.
• It allows scientists to express energy on an atomic or microscopic scale rather than large macroscopic values.

Conversion: 1 eV is Equal To?

• 1 eV = 1.602 × 10⁻¹⁹ joules
• Therefore, if we say 1 eV/atom, it means the energy per atom is 1.602 × 10⁻¹⁹ joules.

Practical Usage of 1 eV/atom:

1. Chemical Bonds:
   Energy in eV/atom is often used to describe the bond strength between atoms.
   • Example: A bond energy of 4 eV/atom means each bond holds 4 electron volts of energy.
2. Ionization Energy:
   It measures the energy required to remove an electron from an atom. For example, the ionization energy of hydrogen is about 13.6 eV/atom.
3. Material Properties:
   Energy levels in solid-state physics, such as the band gap of semiconductors, are often expressed in eV/atom.

• 1 eV is equal to 1.602 × 10⁻¹⁹ joules.
• eV/atom quantifies the energy at an atomic scale and is widely used in physics and chemistry to describe atomic interactions, ionization, and material properties.