MHT CET 2021 22th September Evening Shift | Liquid Solution Question 144 | Chemistry

What is Henry's law constant if solubility of a gas in water at $$298 \mathrm{~K}$$ and 1 bar pressure is $$7\times10^{-4} \mathrm{~mol} \mathrm{~L}^{-1}$$ ?

$$2.0 \times 10^{-5} \mathrm{~mol} \mathrm{~L}^{-1}$$ bar$$^{-1}$$

$$7.0 \times 10^{-4} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{bar}^{-1}$$

$$3.5 \times 10^{-3} \mathrm{~mol} \mathrm{~L}^{-1}$$ bar$$^{-1}$$

$$3.1 \times 10^{-5} \mathrm{~mol} \mathrm{~L}^{-1}$$ bar$$^{-1}$$

MHT CET 2021 22th September Evening Shift

MCQ (Single Correct Answer)

-0

Which of the following formulae is used to obtain depression in freezing point?

$$\Delta T_f=\frac{T_f^{\circ}}{T_f}$$

$$\Delta T_f=T_f^{\circ}-T_f$$

$$\Delta \mathrm{T}_{\mathrm{f}}-\mathrm{T}_{\mathrm{f}}=\mathrm{T}_{\mathrm{f}}^{\circ}$$

$$\Delta T_f=\frac{T_f}{T_f^{\circ}}$$

MHT CET 2021 22th September Morning Shift

MCQ (Single Correct Answer)

-0

The vapour pressure of a solvent decreases by 2.5 mm Hg by adding a solute. What is the mole fraction of solute? (Vapour pressure of pure solvent is 250 mm Hg)

0.88

0.01

0.1

0.99

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