At which of the following temperatures does any gas have average molecular kinetic energy double that of at $20^{0} C$ ?

Option 1 - <math> <msup> <mrow> <mrow> <mn>40</mn> </mrow> </mrow> <mrow> <mrow> <mn>0</mn> </mrow> </mrow> </msup> <mi>C</mi> </math>

Option 2 - <math> <msup> <mrow> <mrow> <mn>80</mn> </mrow> </mrow> <mrow> <mrow> <mn>0</mn> </mrow> </mrow> </msup> <mi>C</mi> </math>

Option 3 - <math> <msup> <mrow> <mrow> <mn>313</mn> </mrow> </mrow> <mrow> <mrow> <mn>0</mn> </mrow> </mrow> </msup> <mi>C</mi> </math>

Option 4 - <math> <msup> <mrow> <mrow> <mn>586</mn> </mrow> </mrow> <mrow> <mrow> <mn>0</mn> </mrow> </mrow> </msup> <mi>C</mi> </math>

1 Views|Posted 4 months ago

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Alok Kumar Singh | Contributor-Level 10

4 months ago

Correct Option - 3

Detailed Solution:

Kinetic energy $E ? T$

$\frac{E_{1}}{E_{2}} = \frac{T_{1}}{T_{2}}$

$T_{2} = 2 * 293$

$T_{2} = 586 K = 313^{0} C$

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physics ncert solutions class 11th 2023

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At which of the following temperatures does any gas have average molecular kinetic energy double that of at 20 0 C ?

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