JAMB Biology 2015 Objective — Question 44

Question 44 of 50 from the Joint Admissions and Matriculation Board (JAMB) Biology 2015 Objective paper, with the correct answer and a full explanation.

1050cm³ of helium gas was produced at −33°C and 700mmHg. What volume would the gas occupy at 23°C and 750mmHg?

A. 1208.67cm³Correct
B. 794.59cm³
C. 912.16cm³
D. 1387.50cm³

Explanation

Using the combined gas law: V₂ = P₁V₁T₂/(P₂T₁) = (700×1050×296)/(750×240) ≈ 1208.67cm³.

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