Q. 374.2( 16 Votes )

Match the followi

Answer :

The units of the physical quantities are as follows:

(i) – (e)

As we all know that Molarity is defined as;

So, SI unit of Molarity is mole/litre.

(ii) – (d)

As we all know that Mole fraction is defined as given below;

Mole fraction of A =

And, both of the nominator and denominator and have same SI unit. Thus, the SI unit of mole fraction is unitless.

(iii) – (b)

SI unit of Mole is simply mol.

(iv) – (g)

Molality =

So, from the above formula we can conclude that the SI unit of Molality is molekg-1.

(v) – (c)

SI unit of Pressure is Pascal.

Although, it is defined as given below;

Pressure = .

Although, the SI unit of the above formula is . Which is also known as Pascal.

(vi) – (f)

In photometry, luminous intensity is a measure of the wavelength-weighted power emitted by a light source in a particular direction per unit solid angle, based on the luminous function, a standardized model of the sensitivity of the human eye.

The SI unit of luminous intensity is the candela(cd).

(vii) – (a)

The formula of density is given below;

So, from the above formula, we can conclude that SI unit of Density is gml-1.

(viii) – (i)

As we all know that mass is measured in Kg and the SI unit of Mass is Kg.

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