At what temperature will the rms speed of oxygen molecules become just sufficient for escaping the Earth's atmosphere? (Given : Mass of oxygen molecule (m) = 2.76 × 10⁻²⁶ kg, Boltzmann constant k_B = 1.38 × 10⁻²³ J K⁻¹)
A
2.508 × 10⁴ K
B
8.360 × 10⁴ K
C
5.016 × 10⁴ K
D
1.254 × 10⁴ K

Question

At what temperature will the rms speed of oxygen molecules become just sufficient for escaping the Earth's atmosphere? (Given : Mass of oxygen molecule (m) = 2.76 × 10⁻²⁶ kg, Boltzmann constant k_B = 1.38 × 10⁻²³ J K⁻¹)

A

2.508 × 10⁴ K

B

8.360 × 10⁴ K

C

5.016 × 10⁴ K

D

1.254 × 10⁴ K

Accepted Answer

8.360 × 10⁴ K

Answer

2.508 × 10⁴ K

Answer

5.016 × 10⁴ K

Answer

1.254 × 10⁴ K

STANDARD Physics Root Mean Square Speed MCQ Question

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