What is an ideal gas?
Gases are complicated. They're full of billions and billions of energetic gas…
Gas Pressure Formula
The force which the substance exerts on another substance per unit area is known as pressure. The pressure of the gas is the force that the gas exerts on the container boundaries. The gas molecules move randomly along the given volume. During this movement,…
Derived Units
The International System of Units or SI system, by international agreement, has…
Sequential Multi-Unit Systems
Let’s first examine a multi-unit system composed of a sequential combination of…
General Strategy for Solving Material Balance Problems
Most of the literature on problem solving views a “problem” as a…
Fractional Conversions, Extent of Reaction, Chemical Equilibrium
In many cases, chemical reactions do not go to completion and only…
Mechanical Energy Balance and The Bernoulli Equation
The general energy balance derived previously can be recast into a “mechanical…
Solving Material and Energy Balance Problems
The following steps are helpful in solving problems that combine material and…
The General Energy Balance
“Black Box” Analysis: This method of analysis, in the context of process…


