Suppose there are two goods 'x' and 'y' on which the consumer has to spend his given income. If MUx / Px is greater than MUy / Py, then the consumer will substitute good 'x' for good 'y'. As a result the marginal utility of good 'x' will fall. EXPLANATION: The consumer’s behavior is based on two factors: (a) Marginal Utilities of goods 'x' and 'y' (b) The prices of goods 'x' and 'y' The consumer is in equilibrium position when marginal utility of money expenditure on each good is the same. The Law of Equi-Marginal Utility states that the consumer will distribute his money income in such a way that the utility derived from the last rupee spent on each good is equal. The consumer will spend his money income in such a way that marginal utility of each good is proportional to its rupee. The consumer is in equilibrium in respect of the purchases of goods 'x' and 'y' when: MUx = MUy Where MU is Marginal Utility and P equals Price Px Py. If MUx / Px and MUy / Py are not equal and MUx / Px is greater than MUy / Py, then the consumer will substitute good 'x' for good 'y'. As a result the marginal utility of good 'x' will fall. The consumer will continue substituting good 'x' for good 'y' till MUx/Px = MUy/Py where the consumer will be in equilibrium. Thus this is also known as the law of substitution.

Molar mass of NaOH = 40g per mole
no. of moles in 5g of NaOH = 5/40 =0.125
volume of solution=450mL= 0.45 L
molarity of solution=no.of moles of solute/volume of solution
                              =0.125/0.45
                              =0.277777777778=0.28(approx.)

(a + b)³ = a³ + b³ + 3ab ( a + b)

A disease is a condition that deteriorates the normal functioning of the cells, tissues, and organs.
When a person is inflicted with a disease, he exhibits a few symptoms and signs that range from normal to severe depending upon the medical condition. Hence, in order to identify different diseases, the normalcy of an entity needs to be studied and understood as a clear demarcation between disease and disease-free is not always apparent.

Many students get  confused about the terms 'Conductance' and 'Conductivity'. The inverse of resistance is called Conductance(C or G) and the inverse of resistivity, ρ(Greek, rho) is called Conductivity(κ) ( or specific conductance), κ = 1/ρ. Thus, conductivity of a solution is the conductance of 1 cm3(or 1 m3) of the solution of the electrolyte. One should use the term 'Molar conductivity' rather than 'Molar conductance'.

Conductivity: The reciprocal of resistance of an electrolyte in aqueous solution is known as its conductivity. It is equal to 
Molar Conductivity: Molar conductivity of a solution is defined as the conductance of all ions present in one mole of electrolyte in the solution. If M is the molar concentration in mol L^–1, then.


Fig: Molar conductivity versus C^1/2 for acetic acid (week electrolyte) and potassium chloride (strong electrolyte in aqueous solutions)
The curve shown below gives the change in conductance against square root of concentrations. We observe that for strong electrolytes like KCl, the conductance does not change much with decrease in  whereas in the case of weak electrolyte like acetic acid (CH₃COOH) it increases much with decrease in 

The business environment is the total of all factors external to the business firm, and that greatly influences their functioning. It covers factors and forces like customers, competitors, suppliers, government, and social, cultural, political, technological, and legal conditions.

It's Barter System

A system in which goods were exchanged for goods.

Electric flux is the measure of flow of the electric field through a given area. Electric flux is proportional to the number of electric field lines going through a normally perpendicular surface.