What is the partial pressure of a gas collected over water at 25 °C and 775 mm Hg? The vapor pressure of water at 25 °C is 23.8 mm Hg. (Sec. 10.9) (a) 750 torr (b) 751 torr (c) 760 torr (d) 775 torr (e) 799 torr

What is the partial pressure of a gas collected over water at 25 °C and 775 mm Hg? The vapor pressure of water at 25 °C is 23.8 mm Hg. (Sec. 10.9) (a) 750 torr (b) 751 torr (c) 760 torr (d) 775 torr (e) 799 torr

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter5: Gases

Section: Chapter Questions

Problem 5.71PAE

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Concept explainers

Kinetic-Theory of Gases

Kinetic theory of gases is the model or method which was developed in the 19th century by Maxwell and Boltzmann. This is possible as the interatomic force which is of short-range forces that are important for solids and liquids can be neglected for gases. This theory or gas law gives a molecular interpretation of the pressure and temperature of a gas and is consistent with gas laws and Avogadro’s hypothesis. This theory is very helpful to correctly explain the specific heat capacities of many gases, kinetic energy and it also explains the transport qualities such as viscosity, thermal conductivity, and diffusion with molecular parameters. As stated in the kinetic-molecular theory, the temperature of a substance or gas particle is related to the average kinetic energy of the particles of that substance. When a substance is heated, some of the absorbed energy is stored within the particles, while some of the energy increases the motion of the particles, called average kinetic energy.

Question

What is the partial pressure of a gas collected over water at 25 °C and 775 mm Hg? The vapor pressure of water at 25 °C is 23.8 mm Hg. (Sec. 10.9)
(a) 750 torr
(b) 751 torr
(c) 760 torr
(d) 775 torr
(e) 799 torr

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