Question

Define the following terms:
1.Molar Conductivity $\left( {{\Lambda _m}} \right)$
2.Secondary batteries

Answer 1

Hint: Molar conductivity is dependent upon the conductivity of an electrolyte solution and its concentration. Secondary batteries are related to the rechargeable and storage batteries.

Complete step by step answer:
1.Molar Conductivity can be defined as the conductivity of an electrolyte solution which is divided by the concentration of the electrolyte. It basically measures the efficiency with which a given solution will conduct electricity in a solution.
${\Lambda _m} = \dfrac{K}{C}$
Where K is specific conductivity and C is concentration of in mole per liter.
We can say that it is the conducting power of all the ions produced when we dissolve one mole of an electrolyte in solution. The symbol for the representation of molar conductivity is capital lambda $\left( {{\Lambda _m}} \right)$. The unit of molar conductivity is \[{\rm{S}}\,{{\rm{m}}^{\rm{2}}}{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\]

2.Secondary batteries which are also known as the rechargeable batteries and storage batteries, secondary cell or accumulator is basically a type of electrical battery which can be charged, recharged many times and also, discharged into the load whereas primary batteries or non- rechargeable batteries supplies fully charged battery only once and after that it is discarded. Secondary batteries can be recharge by passing the current in opposite direction

Note: Molar conductivity is the conductance property of an electrolyte solution which is mainly used to determine the efficiency of a given electrolyte in a solution and therefore it is not constant.
Secondary batteries include nickel-cadmium, lead acid and lithium ion batteries which play an important role in our daily chores. The most important example is mobile phones having lithium ion batteries.