At 700 K,K_p for the Following Equilibrium Is 5

question 36

Multiple Choice

At 700 K,K_p for the following equilibrium is 5.6 × 10^-3.
2HgO(s)
2Hg(l) + O₂(g)
Suppose 72.2 g of mercury(II) oxide is placed in a sealed 1.00-L vessel at 700 K.What is the partial pressure of oxygen gas at equilibrium? (R = 0.0821 L ∙ atm/(K ∙ mol) )

• A)0.074 atm
• B)0.0056 atm
• C)19 atm
• D)57 atm
• E)9.5 atm

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Definitions:

Cognitive Consistency

A model of social cognition in which people try to reduce inconsistency among their cognitions, because they find inconsistency unpleasant.

Balance Theory

A psychological theory that suggests individuals strive for a harmonious balance in their relationships and beliefs, avoiding inconsistency among their thoughts.

Triad

In sociology, a group of three people, which provides the simplest unit for studying complex group dynamics.

Cognitive Consistency Theories

A group of attitude theories stressing that people try to maintain internal consistency, order and agreement among their various cognitions.