# One-dimensional Flow of Heat: Coefficient of Thermal Conductivity

Let us consider a parallel-faced slab whose cross-sectional area is A and length L. Let its faces be maintained at steady temperatures θ1 and θ2. Heat will flow through the slab from the face at higher temperature θ1 to that at the lower temperature θ2. Let us assume that no heat escapes out from the Read more about One-dimensional Flow of Heat: Coefficient of Thermal Conductivity[…]

# Evaluation of determinants of 2nd and 3rd Order Matrices

Definition: Every square matrix can be associated to an expression or a number which is known as its determinant. If A = [aij] is a square matrix of order n then the determinant of A is denoted by  or |A| or . Determinant of a square matrix of order 1: If A = [a11] is a Read more about Evaluation of determinants of 2nd and 3rd Order Matrices[…]

# Intermolecular forces

Forces of attraction and repulsion between interacting atoms/molecules other than electrostatic or covalent bonds are called inter molecular forces. Attractive inter molecular forces: Known as van der Waal’s forces Types: 1. Dispersion forces/ London forces: Force of attraction between temporary dipoles. Always attractive. Significant only at short distances between interacting particles Magnitude depends on polarizability Read more about Intermolecular forces[…]

# NEWTON’S LAW OF UNIVERSAL GRAVITATION

Every particle in this universe attracts every other particle with a force that is proportional to the product of these masses and inversely proportional to the square of the distance between them.Thus, F = Gm₁m₂/r², where and are the gravitational masses of the particles, r is the separation between them and G is Universal Gravitational Read more about NEWTON’S LAW OF UNIVERSAL GRAVITATION[…]

# Bond Parameters II

Polarity: All homonuclear diatomic molecules will have zero polarity. Example: O2, N2, F2, H2. It mainly arises due to differences in electronegativity of bonded atoms. A covalent bond, in which electrons are shared unequally and the bonded atoms acquire partial positive and negative charge, is called a polar covalent bond (or) a covalent bond (or) Read more about Bond Parameters II[…]