At 800 °C,water Has an Equilibrium Vapor Pressure of 355

question 46

Multiple Choice

At 80.0 °C,water has an equilibrium vapor pressure of 355.1 mm Hg.If 4.22 g H₂O is sealed in an evacuated 5.00 L flask and heated to 80.0 °C,what mass of H₂O will be found in the gas phase when liquid-vapor equilibrium is established? Assume any liquid remaining in the flask has a negligible volume.(R = 0.08206 L⋅atm/mol⋅K,1 atm = 760 mm Hg)

• A) 0.689 g
• B) 1.45 g
• C) 1.67 g
• D) 2.77 g
• E) 4.22 g

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Definitions:

Resistance Phase

The second stage of the general adaptation syndrome, where the body adapts to and resists stressors, mobilizing resources to cope.

Alarm Phase

The initial reaction of the body's stress response, characterized by the activation of the sympathetic nervous system and the release of stress hormones.

Chronic Stress Phase

A prolonged period of stress, without adequate relief, leading to potential health risks and psychological issues.

General Adaptation Syndrome

A three-stage response (alarm, resistance, exhaustion) that the body goes through when under stress.