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Monday, September 28, 2020
How to reactions of glycerol differ with excess HCl, HBr and HI ?
What is difference between Glycerol and Glucosamine ?
Glucosamine is an amino sugar and a prominent precursor in the biochemical synthesis of glycosylated proteins and lipids. and its molecular formula is (C6H13NO5) and it structure is given below.
Saturday, September 26, 2020
The States of matter : Numerical Questions : Part-(3):
(i) the gas behaves like an ideal gas (using ideal gas equation).
(8) The rms speed of an ideal gas at 27°C is 0.3 ms–1 . Its rms speed at 927°C (in ms–1) is
(15) The density of methane at 2.0 atmosphere pressure and 27°C is
(a) the temperature at which vessel was heated ?
(b) the moles of air eascaped out, if vessel were heated to 900 K ?
(c) temperature at which half of the air escapes out ?
Important reasoning Questions of "the state of matter" !!
(1) Liquid ammonia bottle is cooled before opening the seal. Explain.
(3) Out of dry air and wet air, which is heavier?
(4) Can we apply Dalton’s law of partial pressure to a mixture of carbon monoxide and oxygen?
(5) Why a bottle of liquid ammonia is cooled before opening the seal?
(6) Explain , Aerated water bottles are kept under water during summer why?
(8) Why falling liquid drops are spherical?
(9) Why diethyl ether has higher vapour pressure than ethyl alcohol at a particular temperature?
(10) Why liquid have a definite volume but no definite shape?
(11) What are the difference between Diffusion and Effusion ?
(12) What is payload of Balloon ?
(13) What is Aqueous tension
?
(14) What is Vander waals equation of state of a real gas ?