JEE Main 2022 — Chemistry Physical Chemistry

2022integerhard

A company dissolves ' $x$ ' amount of ${\mathrm{CO}}_{2}$ at $298K$ in $1$ litre of water to prepare soda water. $X=\times {10}^{-3}g$ . (nearest integer)

(Given: partial pressure of ${\mathrm{CO}}_{2}$ at $298K=0.835$ bar. Henry's law constant for ${\mathrm{CO}}_{2}$ at $298K=1.67\mathrm{kbar}$ . Atomic mass of $H,C$ and $O$ is $1,12$ , and $6g{\mathrm{mol}}^{-1}$ , respectively)

Official previous-year question

Held on 24 Jun 2022 · Verified 6 Jul 2026.

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Solution

Using Henry’s law

P $_{gas}$ = K $_{H}$ .X $_{gas}$

$_{{10}^{-3}X0.835=1.67[\frac{{n}_{{\mathrm{CO}}_{2}}}{{n}_{{\mathrm{CO}}_{2}}+55.5}] {10}^{-3}X0.5=[\frac{{n}_{{\mathrm{CO}}_{2}}}{{n}_{{\mathrm{CO}}_{2}}+55.5}] \frac{{n}_{{\mathrm{CO}}_{2}}}{55.5}=0.5X{10}^{-3} {n}_{{\mathrm{CO}}_{2}}=27.75X{10}^{-3} {W}_{{\mathrm{CO}}_{2}}=27.75X{10}^{-3}X44=1221X{10}^{-3}g}$

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JEE Main 2022 — Chemistry Physical Chemistry

2022integerhard

A company dissolves ' $x$ ' amount of ${\mathrm{CO}}_{2}$ at $298K$ in $1$ litre of water to prepare soda water. $X=\times {10}^{-3}g$ . (nearest integer)

Official previous-year question

Held on 24 Jun 2022 · Verified 6 Jul 2026.

Did you get this right?

Solution

Using Henry’s law

P $_{gas}$ = K $_{H}$ .X $_{gas}$

Your note

JEE Main Physical Chemistry in other years

Keep practicing Physical Chemistry

Work through every JEE Main Physical Chemistry PYQ, year by year.

Browse all Chemistry topics

JEE Main 2022 — Chemistry Physical Chemistry

Did you get this right?

Solution

Your note

JEE Main Physical Chemistry in other years

More JEE Main Physical Chemistry questions

Other Chemistry topics for JEE Main

Organic Chemistry

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Keep practicing Physical Chemistry

JEE Main 2022 — Chemistry Physical Chemistry

Did you get this right?

Solution

Your note

JEE Main Physical Chemistry in other years

More JEE Main Physical Chemistry questions

Other Chemistry topics for JEE Main

Organic Chemistry

Inorganic Chemistry

Keep practicing Physical Chemistry