onsider the flasks in the following diagrams.
mg src=Images/HTML_99425-13-145AP_image001.jpg alt="" align="top"/>
Which is greater, the initial pressure of helium or the initial pressure of neon? How much greater?
Assuming the connecting tube has negligible volume. Draw what each diagram will look like after the stopcock between the two flasks is opened.
Solve for the final partial pressures of helium and neon in terms of their original pressures. Assume the temperature is constant.
Solve for the final pressure in terms of the original pressures. of helium and neon. Assume temperature is constant.
(a)
Interpretation:
The greater pressure between the initial pressure of helium and the initial pressure of neon should be determined.
Concept Introduction:
Pressure of a given mass of gas at a particular temperature is defined as the force exerted per unit area of the walls of the container by colliding gas molecules.
According to ideal gas law,
Here, P is pressure, V is volume, R is Universal gas constant and n is number of moles.
At constant temperature,
For helium gas,
Therefore,
For neon gas,
(b)
Interpretation:
The diagram of the set-up after the stopcock between the two flasks opened should be drawn.
Concept Introduction:
At a given temperature and pressure, equal volumes of gases contain same number of moles of gas molecules.
(c)
Interpretation:
The final partial pressures of helium and neon in terms of their original pressures should be determined.
Concept Introduction:
The pressure exerted by one gas in a gaseous mixture when it occupies the same volume of the gas mixture is known as the partial pressure.
(d)
Interpretation:
The final pressures in terms of the original pressures of helium and neon should be determined.
Concept Introduction:
At constant temperature, volume of a given mass of gas is inversely proportional to its pressure.
Chemistry: An Atoms First Approach
General Chemistry - Standalone book (MindTap Course List)
College Physics
Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)
Understanding Nutrition (MindTap Course List)
Fundamentals of Physical Geography
Inquiry into Physics
Biology: The Unity and Diversity of Life (MindTap Course List)
Biology (MindTap Course List)
Chemistry In Focus
Chemistry & Chemical Reactivity
College Physics
Horizons: Exploring the Universe (MindTap Course List)
An Introduction to Physical Science
Human Biology (MindTap Course List)
Introduction to General, Organic and Biochemistry
Physical Chemistry
Chemistry for Engineering Students
Chemistry: Principles and Reactions
Chemistry for Today: General, Organic, and Biochemistry
Biology: The Dynamic Science (MindTap Course List)
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Nutrition Through The Life Cycle
Cardiopulmonary Anatomy & Physiology
Human Heredity: Principles and Issues (MindTap Course List)
Organic Chemistry
Chemistry In Focus
Chemistry for Engineering Students
Environmental Science (MindTap Course List)
General, Organic, and Biological Chemistry
Nutrition Through the Life Cycle (MindTap Course List)
College Physics
Environmental Science (MindTap Course List)
Physics for Scientists and Engineers
Organic And Biological Chemistry
Biology: The Unity and Diversity of Life (MindTap Course List)
Physics for Scientists and Engineers, Technology Update (No access codes included)