A small piece of Cr metal reacts with dilute HNO3 to form H2 (g), which is collected over water at 18 C in a large flask. The total pressure in the flask is 753 mmHg.
Determine the partial pressure of the H2 present.

Complete Question

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The partial pressure is

Explanation:

The Partial pressure of is mathematically represented as

Where is the total pressure of water with a value of 15.5 mm of Hg

            is the partial pressure of water with a value 753 mm of Hg

Now substituting values

The partial pressure of the H₂ is 737.5 mmHg

Explanation:

The partial pressure of the H₂ is equal to:

Where PH₂O is the partial pressure for the water. Clearing the partial pressure of H₂:

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

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