States of Matter and Gaseous StatemediumMCQ SINGLE

The closed containers of the same capacity and at the same temperature are filled with 44g of in oneStates of Matter and Gaseous State Chemistry Question

Question

The closed containers of the same capacity and at the same temperature are filled with 44g of $H_2$ in one and 44g of $CO_2$ in the other. If the pressure of carbon dioxide in the second container is 1 atm. That of hydrogen in the first container would be :

Answer: C

💡 Solution & Explanation

# Solution **Step 1: Calculate moles of each gas** For $H_2$: Molar mass = 2 g/mol $$n_{H_2} = \frac{44}{2} = 22 \text{ mol}$$ For $CO_2$: Molar mass = 44 g/mol $$n_{CO_2} = \frac{44}{44} = 1 \text{ mol}$$ **Step 2: Apply ideal gas law** Since both containers have: - Same volume ($V$) - Same temperature ($T$) Using $PV = nRT$, at constant $V$ and $T$: $$P \propto n$$ **Step 3: Find pressure ratio** $$\frac{P_{H_2}}{P_{CO_2}} = \frac{n_{H_2}}{n_{CO_2}} = \frac{22}{1} = 22$$ **Step 4: Calculate $P_{H_2}$** Given $P_{CO_2} = 1$ atm: $$P_{H_2} = 22 \times 1 = \boxed{22 \text{ atm}}$$ **Why this is correct:** The number of moles of gas determines pressure in a fixed volume at constant temperature. With 22 times more moles of $H_2$, its pressure must be 22 times higher than $CO_2$.

💬
Still have doubts about this question?
Send it to our AI chemistry tutor on WhatsApp — gets answered in minutes
Ask on WhatsApp →

Practice 22,000+ questions like this

AI-adaptive practice, video lectures, and full JEE Advanced Chemistry content — all in one place.

JEE Advanced · JEE Mains · NEET · IChO · AP Chemistry