Advertisements
Advertisements
प्रश्न
Why soda water bottle kept at room temperature fizzes on opening?
उत्तर
To increase the solubility of CO2 in soft drinks, the soda water bottles are sealed under high pressure. When the bottle is opened at room temperature under normal atmosphere conditions, the pressure inside the bottle decreases to atmospheric pressure and excess CO2 fizzes out.
APPEARS IN
संबंधित प्रश्न
What role does the molecular interaction play in a solution of alcohol and water?
What type of intermolecular attractive interaction exists in the pair of methanol and acetone?
The partial pressure of nitrogen in air is 0.76 atm and its Henry’s law constant is 7.6 × 104 atm at 300 K. What is the mole fraction of nitrogen gas in the solution obtained when air is bubbled through water at 300 K?
The mass of a non – volatile solute (molar mass 80 g mol-1) should be dissolved in 92g of toluene to reduce its vapour pressure to 90% ______.
If two liquids A and B form minimum boiling azeotrope at some specific composition then ______.
Assertion: Molarity of a solution in liquid state changes with temperature.
Reason: The volume of a solution changes with change in temperature.
Assertion: When a solution is separated from the pure solvent by a semipermeable membrane, the solvent molecules pass through it from pure solvent side to the solution side.
Reason: Diffusion of solvent occurs from a region of high concentration solution to a region of low concentration solution.
The pH of a solution of hydrochloric acid is 1.5. Calculate the concentration of the acid.
On increase in pressure for dissociation ofN2O4 into NO2, equilibrium shift towards
Lowering of vapour pressure of an aqueous solution of a non-volatile, non-electrolyte 1 molal aqueous solution at 100°C is ______.
