Advertisements
Advertisements
Question
Why soda water bottle kept at room temperature fizzes on opening?
Advertisements
Solution
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
RELATED QUESTIONS
Define an ideal solution and write one of its characteristics.
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% ______.
For ideal solution the enthalpy of mixing of the pure components to form the solution is ____________.
The rate at which a solid dissolves in liquid does not depend on ____________.
Which of the following condition is not satisfied by an ideal solution?
Which relationship is not correct?
If two liquids A and B form minimum boiling azeotrope at some specific composition then ______.
Intermolecular forces between two benzene molecules are nearly of same strength as those between two toluene molecules. For a mixture of benzene and toluene, which of the following are not true?
(i) ∆mix H = zero
(ii) ∆mix V = zero
(iii) These will form minimum boiling azeotrope.
(iv) These will not form ideal solution.
Explain the terms ideal and non-ideal solutions in the light of forces of interactions operating between molecules in liquid solutions.
Dissociation constant and molar conductance of an acetic acid solution are 1.78 × 10–5 mol L–1 and 48.15 S cm–2 mol–1 respectively. The conductivity of the solution is (considering molar conductance at infinite dilution is 390.5 S cm–2 mol–1)
On increase in pressure for dissociation ofN2O4 into NO2, equilibrium shift towards
Which of the following gave the idea of a nucleus of the atom?
While titration dilute HCl solution with aqueous NaOH, which of the following will not be required?
What type of deviation from Roult’s Law is expected when phenol and aniline are mixed with each other? What change in the net volume of the mixture is expected? Graphically represent the deviation.
Suggest the most important type of intermolecular attractive interaction in the following pair.
Methanol and acetone
5 moles of liquid X and 10 moles of liquid Y make a solution having a vapour pressure of 70 torr. The vapour pressures of pure X and Y are 63 torr and 78 torr respectively. Which of the following is true regarding the described solution?
