This is the unit of volumetric diffusivity.

This can be used to quantify the mass transfer between phases, immiscible and partially miscible fluid mixtures. It is used to measure the amount of substance in a system. The unit of mass transfer coefficient is given as the ratio of this to the product of time, area and pressure.

This is the ratio of the number of real trays required, to the number of ideal trays required. It quantifies the difference between maximum theoretical or equilibrium performance and the actual performance achieved.

This chart is used for design of distillation columns with a straight-line graph of the logarithm of vapour pressure against a special non uniform temperature scale. The vapour pressure-temperature lines for many substances intersect at a common point.

On a McCabe–Thiele diagram, if the q-line is horizontal, the feed entering the distillation column is in what condition?

It is a chemical reaction in which one or more chemical species react directly to form products in a single reaction step and with a single transition state.

It is a complex chemical reaction that includes multiple sub-steps. That means; these reactions have a series of steps and different transition states with different intermediates as well.

This type of reactor operates with a continuous feed and product stream, while perfect mixing ensures that the concentration remains uniform throughout the reactor. Its design equation is based on the reactor volume and reaction rate.

This is the response curve for a step input signal from a reactor. The variance of this curve in series model can be given by 1/t where t is the number of reactors connected in series.

For such a reaction the initial rate is low since little product is present and it increases to maximum as product is formed and then drops again to low value as reactant is consumed:

4C₃H₅(NO₃)₃ → 6N₂ + O₂ + 10H₂O + 12CO₂

It is a meal or powder made from ground up animal bones, normally beef bones, but they can be the bones of any animal commonly slaughtered. It is steamed to increase its availability for plants.

Metallurgical process in which small quantities of special reagents are added to the pulp to coat or film some of the minerals selectively with respect to other minerals present.

SO2 is converted to SO3 by use of a metal or metal oxide catalyst. Platinum was once widely used as a catalyst, but because of its excessive cost and susceptibility to poisoning, it has largely been replaced by vanadium pentoxide. The main advantages of the contact process are more concentrated acid (98% H2SO4) and high purity.

It is an agglomeration of small particles to form larger ones without reaching the melting point.

A method of mining sulfur by pumping superheated water down into the deposit, thereby melting it so that it can be pumped to the surface

In this classic puzzle game, players click on a grid and use numbers to figure out where hidden explosives are located.

In Hollow Knight, this fallen kingdom is explored by the Knight.

This ore can be mined with a diamond or netherite pickaxe and is used to craft a Netherite Upgrade Smithing Template.

This game is based on Toby Fox’s dream and it’s name is an anagram of the next game in it’s franchise

This 1984 puzzle game was created by Soviet computer scientist Alexey Pajitnov.

It is defined as the shear force per unit area (or shear stress), required to drag one layer of fluid with unit velocity past another layer a unit distance away.

It is a dimensionless parameter given as a ratio of the molecular mean free path length to a representative physical length scale that describes the degree of departure from the continuum.

A comprehensive documentation of the experimental and theoretical investigations on the laws of friction in pipe flows has been presented in this diagram.

It is a dimensionless number which is defined as the ratio of inertia forces to surface tension forces.

These are the most common form of random packing rings, having cylindrical dimensions with rows of windows to increase surface area and are mostly used in low pressure drop and high capacity applications.

The supercontinent that was formed 250 million years ago

The canal which divides Africa and Asia.

This country formerly known as Zaire gained independence from Belgium on June 30, 1960.

This river flows through or along the borders of 10 countries and is the second-longest river in Europe.

This place was hit by a meteor that caused the extinction of the dinosaurs 65 million years ago