Why lattice is positive . Is it also report in negative terms

Asked by Ashu Jain | 15th Oct, 2013, 12:03: PM

Expert Answer:

Kindly reframe your question as, Why lattice enthalpy/energy is positive?


The lattice dissociation enthalpy is the enthalpy change needed to convert 1 mole of solid crystal into its scattered gaseous ions. Lattice dissociation enthalpies are always positive.

The lattice formation enthalpy is the enthalpy change when 1 mole of solid crystal is formed from its scattered gaseous ions. Lattice formation enthalpies are always negative.

The lattice dissociation enthalpy is the enthalpy change needed to convert 1 mole of solid crystal into its scattered gaseous ions. Lattice dissociation enthalpies are always positive.

The lattice formation enthalpy is the enthalpy change when 1 mole of solid crystal is formed from its scattered gaseous ions. Lattice formation enthalpies are always negative.

Answered by Hanisha Vyas | 15th Oct, 2013, 07:06: PM

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