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When hydrogen gas at high pressure and r...

When hydrogen gas at high pressure and room temperature expands adiabatically to a region of low pressure there is a decreases in temperature
Hydrogen gas at room temperature is above its inversion temperature .

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Hydrogen gas at high pressure and room temperature expands adiabatically into a region of low pressure there is a increase in temperature .
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Assertion (A): When hydrogen gas at high pressure and room temperature expands adiabatically into a region of low pressure, there is a decrease in temperature. Reason (R ) : Hydrogen gas at room temperature is above its inversion temperature.

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