Suppose 15

question 16

Multiple Choice

Suppose 15.00 g of solid ammonium hydrogen sulfide is introduced into a 500.-mL flask at 25°C,the flask is sealed,and the system is allowed to reach equilibrium.What is the partial pressure of ammonia in this flask if K_P = 0.108 at 25°C for the following reaction?
NH₄HS(s) NH₃(g) + H₂S(g)

• A)0.657 atm
• B)1.25 atm
• C)0.329 atm
• D)14.4 atm
• E)2.50 atm

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Definitions:

Habituation

Getting used to something in the environment and not responding as strongly anymore.

Systematic Desensitization

A treatment for phobias that attempts to reduce fear in many small steps by associating the feared thing with calmness.

Variable-Ratio Reinforcement

A schedule of reinforcement where a response is rewarded after an unpredictable number of responses, promoting a high and steady response rate.

Fixed-Ratio Reinforcement

A type of conditioning schedule where a response is reinforced only after a specified number of responses have occurred.