A container contains 1g H₂ gas and 1g O2 gas. What is the ratio of partial pressure of H₂ and O₂ (PH2/PO2)?
- 16:1
- 8:1
- 4:1
- 1:1
The Correct Option is A
Solution and Explanation
The correct option is (A): 16:1
\(P_{H_2}=P_Tx_{H_2}\) (PT = total pressure )
(\(x_{H_2}\) = mole fraction of H2 )
\(P_{o_2}=P_{T}x_{O_2}\) (\(x_{O_2}\) = mole fraction of O2 )
\(\frac{P_{H_2}}{P_{O_2}}=\frac{x_{H_2}}{x_{O_2}}=\frac{n_{H_2}}{n_{O_2}}\)
\(n_{H_2}=\frac{1}{2}\ mol\)
\(n_{O_2}=\frac{1}{32}\)
\(\frac{P_{H_2}}{P_{O_2}}=\frac{1}{2\times1}\times32\)
\(\frac{P_{H_2}}{P_{O_2}}=\frac{32}{2}=\frac{16}{1}\)
Therefore , the ratio is 16:1
Top Questions on Partial pressure
- The partial pressure of the gas in vapour phase (P) is proportional to the mole fraction of the gas (x) in the solution. It is expressed as P - KHx.
KH stands for-- CUET (UG) - 2023
- Chemistry
- Partial pressure
- The correct order of melting points of hydrides of group 16 elements is:
- JEE Main - 2022
- Chemistry
- Partial pressure
- At 345 K, the half life for the decomposition of a sample of a gaseous compound initially at 55.5 kPa was 340 s. When the pressure was 27.8 kPa, the half life was found to be 170 s. The order of the reaction is ________. [integer answer]
- JEE Main - 2022
- Chemistry
- Partial pressure
- The correct order of melting point is
- JEE Main - 2022
- Chemistry
- Partial pressure
- A rigid nitrogen tank stored inside a laboratory has a pressure of 30 atm at 06:00 am when the temperature is 27°C. At 03:00 pm, when the temperature is 45°C, the pressure in the tank will be _______ atm. [nearest integer]
- JEE Main - 2022
- Chemistry
- Partial pressure
Questions Asked in JEE Main exam
- Let \[ \vec{a} = 2\hat{i} + \alpha \hat{j} + \hat{k}, \quad \vec{b} = -\hat{i} + \hat{k}, \quad \vec{c} = \beta \hat{j} - \hat{k}, \] where \( \alpha \) and \( \beta \) are integers and \( \alpha \beta = -6 \). Let the values of the ordered pair \( (\alpha, \beta) \) for which the area of the parallelogram of diagonals \( \vec{a} + \vec{b} \) and \( \vec{b} + \vec{c} \) is \( \frac{\sqrt{21}}{2} \), be \( (\alpha_1, \beta_1) \) and \( (\alpha_2, \beta_2) \). Then \( \alpha_1^2 + \beta_1^2 - \alpha_2 \beta_2 \) is equal to:
- JEE Main - 2024
- Vectors
- The molecular formula of second homologue in the homologous series of monocarboxylic acid is
- JEE Main - 2024
- Aldehydes, Ketones and Carboxylic Acids
- Given below are two statements: Statement I: $\text{PF}_5$ and $\text{BrF}_5$ both exhibit $\text{sp}^3\text{d}$ hybridisation.Statement II: Both $\text{SF}_6$ and $[\text{Co}(\text{NH}_3)_6]^{3+}$ exhibit $\text{sp}^3\text{d}^2$ hybridisation. In the light of the above statements,choose the correct answer from the options given below:
- JEE Main - 2024
- Hybridisation
- Consider the system of linear equations \( x + y + z = 4\mu \), \( x + 2y + 2\lambda z = 10\mu \), \( x + 3y + 4\lambda^2 z = \mu^2 + 15 \), where \( \lambda, \mu \in \mathbb{R} \). Which one of the following statements is NOT correct?
- JEE Main - 2024
- Linear Algebra
- If the constant term in the expansion of \((1 + 2x - 3x^3) \left(\frac{3}{2}x^2 - \frac{1}{3x}\right)^9\) is \( p \), then \( 108p \) is equal to _________.
- JEE Main - 2024
- Algebra
Concepts Used:
Partial Pressure
Partial Pressure is defined as if a container filled with more than one gas, each gas exerts pressure. The pressure of anyone gas within the container is called its partial pressure.
Dalton’s Law of Partial Pressure:
According to Dalton’s law of partial pressures, the total pressure exerted by the mixture of gases is the sum of the partial pressure of every existing individual gas, and every gas is assumed to be an Ideal gas.
Ptotal = P1 + P2 + P3 …
Where P1, P2, P3 are the partial pressures of gas 1, gas 2, and gas 3. Since every gas has an independent behavior, the ideal gas law is used to find the pressure of that gas if its number of moles, the volume of container and temperature is known.