Substance X Has a Heat of Vaporization of 55

question 8

Multiple Choice

Substance X has a heat of vaporization of 55.4 kJ/mol at its normal boiling point (423°C) . For the process X(l) → X(g) at 1 atm and 423°C, calculate the value of:
-ΔS_univ

• A) 0
• B) -79.6 J/K•mol
• C) 79.6 J/K•mol
• D) -103 J/K•mol
• E) 103 J/K•mol

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Definitions:

Experience

The knowledge or skill acquired by a person through direct observation or participation in events or activities.

Unconditioned Stimulus

A stimulus that automatically triggers a response without any need for prior conditioning.

Meat Powder

Ground or finely divided meat used in various contexts, including as a food ingredient or in laboratory settings as a stimulus in the study of animal behavior.

Conditioned Response

A learned response to a previously neutral stimulus that has been repeatedly presented along with an unconditioned stimulus.