Lattice Energy Calculator:
Enter the values of Constant in 2.31* 10-19Joules* k(J*N-m), Numerical Ion Charge1 Q1(J), Numerical Ion Charge2 Q2(J) & Distance Between Ions R(Nm) to determine the value of Lattice Energy LE(J).
Lattice Energy Formula:
The Lattice Energy LE(J) in Joules is Equal to the Constant k(J*N-m) in 2.31* 10-19Joules*Newton meter and Multiply the Numerical Ion Charge1 Q1(J) in Joules and again Multiply the Numerical Ion Charge2 Q2(J) in Joules and then Divided by the Distance Between Ions R(Nm) in Newton meter.
The Equation of Lattice Energy can be written as,
LE(J) = ( k(J*N-m) * Q1(J) * Q2(J) ) / R(Nm)
Here,
LE(J) = Lattice Energy in Joules
k(J*N-m) = Constant in 2.31* 10-19Joules*Newton meter
Q1(J) = Numerical Ion Charge1 in Joules
Q2(J) = Numerical Ion Charge2 in Joules
R(Nm) = Distance Between Ions in Newton meter
Lattice Energy Calculation:
1)Calculate the Lattice Energy and given for the Numerical Ion Charge1&2 = 6J & -3J , Distance Between Ions = 6Nm.
Answer
LE = (k * Q1 * Q2) / R
LE = (2.31*10-19 * 6 * -3) / 6
LE = 6.93e-19Joules.
2)Calculate the Distance Between Ions and given for the Numerical Ion Charge1&2 = 6J & -3J , Lattice Energy = 6.93e-19Joules.
Answer
LE = (k * Q1 * Q2) / R
6.93e-19 = (2.31*10-19 * 6 * -3) / R
R = 6Nm.