Advertisements
Advertisements
Question
The unit of ebulioscopic constant is ______.
Options
K kg mol–1 or K(molality)–1
mol kg K–1 or K–1(molality)
kg mol–1 K–1 or K–1(molality)–1
K mol kg–1 or K(molality)
Solution
The unit of ebulioscopic constant is K kg mol–1 or K(molality)–1.
Explanation:
`k_b = (DeltaT_b)/m = K/("mol" kg^-1)` or K(molality)–1
APPEARS IN
RELATED QUESTIONS
8 g of glucose, C6H12O6 (Molar Mass = 180 g mol−1) is dissolved in 1 kg of water in a sauce pan. At what temperature will this solution boil?
(Kb for water = 0.52 K kg mol−1, boiling point of pure water = 373.15 K)
Boiling point of water at 750 mm Hg is 99.63°C. How much sucrose is to be added to 500 g of water such that it boils at 100°C? Molal elevation constant for water is 0.52 K kg mol−1.
Define the term Colligative properties
Arrange the following in increasing order of boiling points:
(CH3)3 N, C2 H5 OH, C2 H5 NH2
Exactly 1 g of urea dissolved in 75 g of water gives a solution that boils at 100.114°C at 760 torrs. The molecular weight of urea is 60.1. The boiling point elevation constant for water is:
Which has the lowest boiling point at 1 atm pressure?
People add sodium chloride to water while boiling eggs. This is to ____________.
Which of the following aqueous solutions should have the highest boiling point?
Molal elevation of boiling point constant is the elevation of boiling point produced by ______
Assertion (A): Elevation in boiling point is a colligative property.
Reason (R): The lowering of vapour pressure of solution causes elevation in boiling point.