Advertisements
Advertisements
प्रश्न
The unit of ebulioscopic constant is ______.
विकल्प
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)
उत्तर
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
संबंधित प्रश्न
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)
Out of 1 M glucose and 2 M glucose, which one has a higher boiling point and why?
Why is elevation of boiling point a colligative property?
Account for the following :
H2S has lower boiling point than H2O.
Arrange the following increasing order of their boiling point:
CH3CH2OH, CH3CHO, CH3–O–CH3
Arrange the following in increasing order of boiling points:
(CH3)3 N, C2 H5 OH, C2 H5 NH2
0.450 g of urea (mol. wt. 60) in 22.5 g of water show 0.170°C of elevation in boiling point. The molal elevation constant of water is:
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 ____________.
