JEE Main 2022 · 25 Jul · Shift 1 · Chemistry Q83

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ChemistryInteger+4 / -1Question 83 of 90

The pressure of a moist gas at 27°C is 4 atm. The volume of the container is doubled at the same temperature. The new pressure of the moist gas is ______ $\times10^{-1}$ atm. (Nearest integer)

(Given : The vapour pressure of water at 27°C is 0.4 atm.)

Your answer

Answer and worked solution

Official answer: 22

Dry gas 3.6 atm halves to 1.8; water stays at 0.4: total 2.2 atm $=22\times10^{-1}$ atm.

Answer: 22

Topics:Gas laws

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JEE Main 2022 · 25 Jul · Shift 1, Chemistry question 83