JAMB Chemistry 2025 Objective — Question 3
Question 3 of 40 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2025 Objective paper, with the correct answer and a full explanation.
Advertisement
1.5 mol of nitrogen gas and 0.5 mol of oxygen gas are sealed in a 10 dm³ container at 400 K. If the total pressure is 3.0 atm, what is the partial pressure of nitrogen?
- A. 0.75 atm
- B. 1.0 atm
- C. 2.25 atmCorrect
- D. 2.5 atm
Explanation
Mole fraction of N₂ = 1.5/(1.5+0.5) = 0.75. P(N₂) = 0.75 × 3.0 atm = 2.25 atm.
Advertisement
Sign up free to unlock
- Score tracking
- Practice history
- Saved questions
- Progress dashboard
- Personalized sessions
- Weak-topic breakdown
…and/or go further with premium services and No Ads.