Neco Model Questions Vol1 2021 Physics Question 16

Practice objective / multiple choice question 16 from the 2021 Neco Model Questions Vol1 Physics examination.

Neco Model Questions Vol1 2021 Physics Objective / Multiple Choice Medium Difficulty
Question 16 NECO_MODEL_QUESTIONS_VOL1 • 2021 • PHYSICS • objective

A sealed rigid container initially holds \(0.500\ \text{mol}\) of an ideal gas at a pressure of \(2.00\ \text{atm}\) and a temperature of \(300\ \text{K}\). The container is heated to \(450\ \text{K}\). To keep the pressure from exceeding \(2.00\ \text{atm}\), a valve is opened and gas escapes until the pressure stabilises at exactly \(2.00\ \text{atm}\) while the temperature remains at \(450\ \text{K}\). Assuming the volume of the container does not change, how many moles of gas escaped?

Answer Options

A. 0.250 mol
Correct Answer B. 0.167 mol
C. 0.333 mol
D. 0.083 mol
Correct Answer
B
Correct Option:
0.167 mol

About This Question

This is Neco Model Questions Vol1 2021 Physics Question 16. It is one of the objective questions from the 2021 Neco Model Questions Vol1 Physics examination.

Difficulty level: Medium .

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