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Solubility of N(2) in water...

Solubility of `N_(2)` in water

A

increases with increase in temperature

B

decreases with increase in temperature

C

is not affected by a change in temperature

D

first increases and then decreases with temperature.

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The correct Answer is:
To determine the solubility of nitrogen gas (N₂) in water and how it varies with temperature, we can analyze the process step by step. ### Step 1: Understanding Solubility of Gases The solubility of gases in liquids is influenced by temperature. Generally, the solubility of gases decreases as the temperature increases. This is because gas solubility is an exothermic process. ### Step 2: Exothermic Reaction When a gas dissolves in water, it releases heat. This means that the dissolution of nitrogen gas can be represented as an exothermic reaction: \[ N_2(g) \rightleftharpoons N_2(aq) + \text{heat} \] Here, the forward reaction (dissolving N₂) releases heat. ### Step 3: Effect of Temperature on Solubility According to Le Chatelier's principle, if we increase the temperature of an exothermic reaction, the equilibrium will shift to favor the endothermic direction (the reverse reaction in this case). Thus, increasing the temperature will decrease the solubility of nitrogen gas in water. ### Step 4: Conclusion From the analysis, we conclude that the solubility of nitrogen gas (N₂) in water decreases as the temperature increases. Therefore, if the temperature rises, the solubility of N₂ will decrease. ### Final Answer The solubility of nitrogen gas (N₂) in water decreases with an increase in temperature. ---
To determine the solubility of nitrogen gas (N₂) in water and how it varies with temperature, we can analyze the process step by step. ### Step 1: Understanding Solubility of Gases The solubility of gases in liquids is influenced by temperature. Generally, the solubility of gases decreases as the temperature increases. This is because gas solubility is an exothermic process. ### Step 2: Exothermic Reaction When a gas dissolves in water, it releases heat. This means that the dissolution of nitrogen gas can be represented as an exothermic reaction: \[ N_2(g) \rightleftharpoons N_2(aq) + \text{heat} \] ...
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The Henry's law constant for the solubility of N_(2) gas in water at 298 K is 1.0xx10^(5) atm. The mole fraction of N_(2) in air is 0.8. The number of moles of N_(2) from air dissolved in 10 moles of water at 298 K and 5 atm pressure is

The Henry's law constant for the solubility of N_(2) gas in water at 298 K is 1.0 xx 10^(5) atm . The mole fraction of N_(2) in air is 0.8 . The number of moles of N_(2) from air dissolved in 10 moles of water at 298 K and 5 atm . Pressure is:

Knowledge Check

  • The solubility of N_(2)(g) in water exposed to the atmosphere, when the partial pressure is 593 mm is 5.3xx10^(-4) M. Its solubility at 760 mm and at the same temperature is

    A
    `4.1xx10^(-4)M`
    B
    `6.8xx10^(-4)M`
    C
    `1500M`
    D
    `2400M`

  • The solubility of CO_(2) in water increases with

    A
    Increasing in temperature
    B
    Reduction of gas pressure
    C
    Increasing in gas pressure
    D
    Increasing in volume

  • Assertion : The solubility of HgI_(2) in water decreases in presence of KI . Reason : HgI_(2) is insoluble in water but it becomes soluble in KI(aq) .

    A
    If both assertion and reason are true and the reason is the correct explantion of the assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of the assertion.
    C
    If assertion is true but reason is false.
    D
    If assertion is false but reason is true.

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    The Henry's law constant for the solubility of N_(2) gas in water at 298K is 1.0 xx 10^(5)atm . The mole fraction of N_(2) in air is 0.8. The number of moles of N_(2) from air dissolve in 10 moles of water at 298 K and 5 atm pressure is

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