Top-up is a way to replenish a prepaid mobile account without extending the validity period, whereas recharge is a way to replenish a prepaid mobile account with the extension of validity period. However, now...

Molarity, also known as molar concentration, measures the number of moles of a substance present in per liter of solution. Molarity is denoted with a capital M. Normality is basically a measure of...

Diffusion is the process by which molecules move and travel from one place to another without requiring bulk motion. Effusion is the process by which molecules travel through a pinhole from a place of high...

A dessert is a sweet course that is served at the end of a meal. It is usually made up of sweet foods, but can also contain other items. The term ‘pudding’ has become synonymous with the term ‘dessert’ in the...

Ton is a measurement unit that is generally used for weight. In U.K., one ton is equivalent to 2240 pounds and in the U.S.A., it is considered to be equivalent to 2000 pounds, whereas a metric ton is used to...