A 200-Kg Block of Ice Is at STP (0 $\degree$ C,1 Atm)while It Melts Completely to Water

question 55

Multiple Choice

A 2.00-kg block of ice is at STP (0 $\degree$ C,1 atm) while it melts completely to water.What is its change in entropy? (For ice,L_f = 3.34 x 10⁵ J/kg)

• A)zero
• B)584 J/K
• C)1 220 J/K
• D)2 450 J/K

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Definitions:

Negative Reinforcer

An aversive stimulus whose removal following a behavior increases the likelihood that the behavior will occur again in the future.

Positive Reinforcer

A prompt that, once introduced post-behavior, amplifies the chances of the behavior recurring.

Primary Reinforcer

A stimulus that satisfies a basic physiological need and is inherently rewarding without the need for learning.

Conditioned Reinforcer

A previously neutral stimulus that, after becoming associated with an unconditioned stimulus, acquires the ability to produce a learned response.