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5. A cylinder of capacity 20 litres is filled with

H2 gas. The total average kinetic energy of translatory motion of its molecules 1.5×105 J is . The pressure of hydrogen in the cylinder is

(a) 2×106N/m2                              (b) 3×106N/m2

(c) 4×106N/m2                             (d) 5×106N/m2

Answer-d

(7)

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