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12.Kinetic Theory of Gases
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$300K$ તાપમાને $O_2$ ની ગતિઊર્જા $6.21 \times {10^{ - 21}}\,J$ અને $ rms$ ઝડપ $ 484 \,m/s$ હોય,તો $600\, K$ તાપમાને ગતિઊર્જા અને $rms$ ઝડપ

A

$12.42 \times {10^{ - 21}}\,J,\,968m/s$

B

$8.78 \times {10^{ - 21}}\,J,\,684m/s$

C

$6.21 \times {10^{ - 21}}\,J,\,968m/s$

D

$12.42 \times {10^{ - 21}}\,J,\,684m/s$

Solution

$E \propto T$ , ${v_{rms}} \propto \sqrt T$ $K=2 × 6.21 × 10^{-21} = 12.42 ×10^{-21} J \,\,$

$T=484 \times \sqrt 2 = 684\,m/s$.

Standard 11
Physics

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