Neco 2025 Physics Question 46

Practice objective / multiple choice question 46 from the 2025 Neco Physics examination.

Neco 2025 Physics Objective / Multiple Choice Medium Difficulty
Question 46 NECO • 2025 • PHYSICS • objective

A sealed container of fixed volume contains an ideal gas at \(27^{\circ}\text{C}\) and an unknown initial pressure \(P_0\). The gas is heated until its pressure rises to 1.45 atm. It is then placed in an ice bath at \(0^{\circ}\text{C}\) and the pressure becomes 1.20 atm. Determine (i) the initial pressure \(P_0\) in atm (to two decimal places) and (ii) the temperature of the gas after heating, in \(^{\circ}\text{C}\) (to one decimal place).

Answer Options

Correct Answer A. Initial pressure \(P_0 = 1.32\ \text{atm}\); temperature after heating \(= 57^{\circ}\text{C}\)
B. Initial pressure \\(P_0 = 1.40\\ \\text{atm}\\); temperature after heating \\(= 60^{\\circ}\\text{C}\\)
C. Initial pressure \\(P_0 = 1.25\\ \\text{atm}\\); temperature after heating \\(= 50^{\\circ}\\text{C}\\)
D. Initial pressure \\(P_0 = 1.32\\ \\text{atm}\\); temperature after heating \\(= 65^{\\circ}\\text{C}\\)
Correct Answer
A
Correct Option:
Initial pressure \(P_0 = 1.32\ \text{atm}\); temperature after heating \(= 57^{\circ}\text{C}\)

About This Question

This is Neco 2025 Physics Question 46. It is one of the objective questions from the 2025 Neco Physics examination.

Difficulty level: Medium .

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