MOLECULAR FORMULA DEFINITION
A formula which tells the actual number of atoms present in a molecule of a substance is known as molecular formula.
Examples: H2O2 and C6H12O6 are the molecular formulas of hydrogen peroxide and glucose respectively.
A formula which tells the actual number of atoms present in a molecule of a substance is known as molecular formula.
Examples: H2O2 and C6H12O6 are the molecular formulas of hydrogen peroxide and glucose respectively.
When a liquid is heated, the kinetic energy of its molecules increases in other words the temperature increases as well as the rate of vaporization increases. When the kinetic energy of the molecules becomes maximum i.e., boiling point is reached any further heating at this stage will not increase the temperature rather heat will only…
This Law was given by Joseph Proust. According to this law, “A chemical compound always consists of the same elements in the same ratio by weight”. For example, samples of CO2 obtained by different methods always contain the same elements, i.e., carbon and oxygen in the same ratio, i.e., 3: 8 by weight.
“The rates of diffusion of two gases are inversely proportional to the square roots of their densities or molecular weights at the same temperature and pressure”. Mathematical formula: Graham’s Law of Diffusion Equation, Where r1 and r2 are the rates of diffusion of two gases, d1 and d2 are their densities and M1 and M2…
The most comprehensive Melting point Definition is, The temperature at which liquid & solid form of a substance co-exits in equilibrium under given pressure, is called Melting point. Normally standard pressure is taken as 1 atmosphere. In other way, we can also define melting point as, The temperature at which solid phase of a substance…
Definition: The relationship, which shows the effect of simultaneous changes in pressure and temperature on the volume of given mass of a gas is called ideal gas law or combined gas law. Mathematical Form: (General gas equation) Mathematically, it is expressed as PV = nRT This equation is derived by combining Boyle’s law, Charles’ law…
The lower density of ice than liquid water at 0°C compels water in ponds and lakes to freeze from surface to the downward direction. Water attains the temperature of 4°C by the fall of temperature in the surrounding. As the outer atmosphere becomes further cold, the water at the surface becomes less dense. This less…