Amixture of h2 and water vapor is present in a closed vessel at 20°c. the total pressure of the system is 755.0 mmhg.

partial pressure of water vapor at 20°c equals 17.5 mmhg.

what is the partial pressure of h2?

The partial pressure of is 737.5 mmHg.

Explanation: According to Dalton's law, the total pressure of a mixture of gases is the sum of individual pressures exerted by the constituent gases.

Thus

Given:

Thus

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