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ID#5679 HSC Physics 1st MCQ (Rajshahi 2025)

B সিলিন্ডারে He গ্যাসের আয়তন কত? (n=2, T=400K, P=70 cmHg)
ক) 5.13 x 10⁻² m³
খ) 6.58 x 10⁻² m³
গ) 7.13 x 10⁻² m³
ঘ) 8.51 x 10⁻² m³

ব্যাখ্যা

$PV = nRT \implies V = \frac{nRT}{P}$
$V = \frac{2 \times 8.314 \times 400}{0.7 \times 13596 \times 9.8} \approx 0.0713 m^3$
Resource Details
Exam HSC
Subject Physics 1st paper
Chapter 10
Board Rajshahi
Year 2025

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