The Air Around Us Has 78% Nitrogen and 21% Oxygen

question 4

Multiple Choice

The air around us has 78% nitrogen and 21% oxygen.If the pressure is 1 atm,the pressure due to oxygen is

• A)0.21 atm
• B)0.78 atm
• C)1 atm
• D)0.5 atm
• E)0.67 atm

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Definitions:

Budgets

Financial plans that estimate future income, expenditures, and resources over a specific period.

Standard Cost System

A cost accounting system that compares actual costs to predetermined or standard costs to help in budgeting and variance analysis.

Materials Quantity Variance

A calculation that shows the difference between the actual amount of materials used and the expected amount, which can indicate issues in efficiency or procurement.

Materials Price Variance

The difference between the actual cost of materials and the standard or expected cost, used to assess cost management efficiency.