Choose the aqueous solution that has the highest boiling point. these are all solutions of nonvolatile solutes and you shouldassume ideal van't hoff factors where applicable.
a. 0.100 m nano3
b. 0.100m li2so4
c. 0.200m c3h8o3
d. 0.060m na3po4

The correct answer is Option b.

Explanation:

The expression of elevation in boiling point is given as:

where,

= Elevation in boiling point

i = Van't Hoff factor  

= change in boiling point

= boiling point constant

m = molality

For the given options:

Option 1:  0.100 m

Value of i = 2

So, molal concentration will be =

Option 2:  0.100 m

Value of i = 3

So, molal concentration will be =

Option 3:  0.200 m

Value of i = 1  (for non-electrolytes)

So, molal concentration will be =

Option 4:  0.060 m

Value of i = 4

So, molal concentration will be =

As, the molal concentration of is the highest, so its boiling point will be the highest.

Thus, the order of increasing boiling points follows:

Hence, the correct answer is Option b.

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.

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