Potential energy curve for formation of H₂H₂ बनने का स्थितिज ऊर्जा वक्र

NCERT Fig 4.8 · interactive diagram

Parts and their functions

• Atoms far apart (दूर स्थित परमाणु) — No interaction; energy taken as zero.
• Approach (पास आना) — Attractions (nucleus of one–electron of other) outweigh repulsions, so energy falls.
• Minimum = bond formed (न्यूनतम = बंध बना) — At 74 pm (bond length) energy is lowest; 435.8 kJ mol⁻¹ is released (= bond enthalpy) and the same is needed to break 1 mol H–H bonds.
• Too close (बहुत पास) — Nucleus–nucleus repulsion dominates and energy shoots up.

Original diagram drawn by Simple Learning Hub, based on NCERT Fig 4.8. Report a mistake