At what tempearature, the mean kinetic energy of `O_(2)` will be same for `H_(2)` molecules at `-73^(@)C`

Options

A. `127^(@)`
B. `527^(@)C`
C. `-73^(@)C`
D. `-173^(@)C`

Explanation

To find the temperature at which the mean kinetic energy of \( O_2 \) will be the same as that of \( H_2 \) molecules at \(-73^\circ C\), we can follow these steps:

### Step-by-Step Solution

1. **Convert the given temperature of \( H_2 \) from Celsius to Kelvin**:
\[ T_{H_2} = -73^\circ C + 273.15 = 200.15 \, K \]
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