The Composition (In Mole Percent)of the Atmosphere Is 78

question 30

Multiple Choice

The composition (in mole percent) of the atmosphere is 78.1% N₂,21.0% O₂,and 0.9% Ar.What is the partial pressure of each gas when the barometric pressure is 754.1 mm Hg?

• A) N₂ = 21.1 atm,O₂ = 6.5 atm,Ar = 0.3 atm
• B) N₂ = 78.1 mm Hg,O₂ = 21.0 mm Hg,Ar = 0.9 mm Hg
• C) N₂ = 244 mm Hg,O₂ = 244 mm Hg,Ar = 244 mm Hg
• D) N₂ = 405 mm Hg,O₂ = 234 mm Hg,Ar = 293 mm Hg
• E) N₂ = 589 mm Hg,O₂ = 158 mm Hg,Ar = 7 mm Hg

Understand the basics of exponential smoothing and its application in forecasting.

Recognize the role of past data in forecasting future values.

Learn the principle of parsimony in model selection for time series forecasting.

Understand the concept of seasonality and its different manifestations in time series data.

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