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# Define(i) Lattice energy(ii) Entropy(iii) Energy of atomization(iv) Spontanetity

Asked by k.manju2007 7th September 2015, 6:36 PM

1. Lattice energy can be defined as the enthalpy of formation for ions of opposite charge in the gas phase to be changed into a solid.

2. Entropy is a thermodynamic measure of the disorder in a system. Denoted by symbol S.

3. Enthalpy of atomization is the amount of enthalpy change when a compound's bonds are broken and the component atoms are reduced to individual atoms.

4. A reaction that occurs in a given set of conditions without intervention. A spontaneous reaction proceeds to completion without any outside help. The equation for spontaneity is

ΔG = Δ H - TΔS

Answered by Expert 7th September 2015, 6:45 PM

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## The rain water from a roof 22 m × 20 m drains into a conical vessel having a base of diameter 2 m and height 3.5 cm. If the vessel is just full, find the rainfall in mm.

Asked by shailesh.solanki 18th March 2018, 7:37 PM

## The rain water from a roof 22 m × 20 m drains into a conical vessel having a base of diameter 2 m and height 3.5 cm. If the vessel is just full, find the rainfall in mm.

Asked by shailesh.solanki 18th March 2018, 7:35 PM

## A wooden toy was made by scooping out a hemisphere of same radius from each end of a solid cylinder. If the height of the cylinder is 10 cm, and its base is of radius 3.5 cm, find the volume of wood in the toy. Use pie=22/7

Asked by shailesh.solanki 18th March 2018, 7:34 PM