Write the mathematical expression of refractive index

Write the mathematical expression of generalised Snell's law.

Write the mathematical expression of thermal conductivity.

Write the mathematical expression for pressure law.

Write the mathematical expression of the first law of thermodynamics explaining all the terms present in the expression.

Write the mathematical expression for Heisenberg's uncertainty principle.

Write the mathematical expression for Boyle's law.

Write the mathematical expression for ideal or perfect gas.

Write the mathematical expression by which the volume coefficient represents.

Write Hess's law of constant heat summation. Write the mathematical expression-for entropy.

Write the mathematical expression by which pressure coefficient of a gas represent.