A 250-L Flask Contains a Mixture of Methane (CH₄)and Propane (C₃H₈)at

question 59

Multiple Choice

A 2.50-L flask contains a mixture of methane (CH₄) and propane (C₃H₈) at a pressure of 1.45 atm and 20°C.When this gas mixture is then burned in excess oxygen, 8.60 g of carbon dioxide is formed.(The other product is water.) What is the mole fraction of methane in the original gas mixture?

• A)0.145
• B)0.341
• C)0.659
• D)0.855
• E)1.00

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Definitions:

Overactive Pituitary

A condition in which the pituitary gland produces an excess of one or more hormones, which can lead to various health issues.

Underactive Thyroid

A condition also known as hypothyroidism, where the thyroid gland doesn't produce sufficient hormones, affecting metabolism and energy levels.

Underactive Pituitary

A condition where the pituitary gland does not produce adequate amounts of certain hormones, which can affect various bodily functions.

Endocrine System

A network of glands and organs that secrete hormones directly into the bloodstream to regulate bodily functions and processes.