The Figure (Not to Scale)shows a PV Diagram for 1

question 21

Multiple Choice

The figure (not to scale) shows a pV diagram for 1.8 g of helium gas (He) that undergoes the process 1 → 2 → 3.Find the value of V₃.The ideal gas constant is R = 8.314 J/mol ∙ K = 0.0821 L ∙ atm/mol ∙ K,and the atomic weight of helium is 4.0 g/mol.

• A)17 L
• B)69 L
• C)34 L
• D)8.6 L

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Definitions:

Anxiety

A condition of uneasiness, worry, or fear, frequently focused on a near event or an outcome with uncertain implications.

Depression

A psychological health challenge defined by a permanent down mood or indifference to undertakings, greatly affecting daily performance.

Cognitive Therapy

A form of psychotherapy that focuses on changing negative thought patterns to improve behavior and emotions.

Systematic Desensitization

A behavioral therapy technique used to reduce irrational fears and anxiety through gradual exposure to the feared object or situation paired with relaxation exercises.