A cylinder of capacity 20 litres is filled with H 2 gas- The total average kinetic energy of translatory motion of its molecules is 1-5 - 105 J- The pressure of hydrogen in the cylinder isA- 2 - 106 N - m 2B- 3 - 106 N - m 2C- 4 - 106 N - m 2D- 5 - 106 N - m 2

The correct option is D PV=2/3E P=2/3×1.5×10^5/20×10^ 3=5×10^6 Pa ...

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Standard XII

Physics

Pressure vs Velocity

A cylinder of...

Question

A cylinder of capacity 20 litres is filled with $H_{2}$ gas. The total average kinetic energy of translatory motion of its molecules is $1.5 \times 10^{5} J$ . The pressure of hydrogen in the cylinder is

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Solution

The correct option is D

$P V = \frac{2}{3} E P = \frac{2}{3} \times \frac{1.5 \times 10^{5}}{20 \times 10^{- 3}} = 5 \times 10^{6} P a$

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A cylinder of capacity 20 litres is filled with H2 gas. The total average kinetic energy of translatory motion of its molecules is 1.5×105 J. The pressure of hydrogen in the cylinder is

The correct option is D PV=23EP=23×1.5×10520×10−3=5×106 Pa

A cylinder of capacity 20 litres is filled with $H_{2}$ gas. The total average kinetic energy of translatory motion of its molecules is $1.5 \times 10^{5} J$ . The pressure of hydrogen in the cylinder is

The correct option is D

$P V = \frac{2}{3} E P = \frac{2}{3} \times \frac{1.5 \times 10^{5}}{20 \times 10^{- 3}} = 5 \times 10^{6} P a$