A Gasoline Engine Absorbs 2500 J of Heat at 250°C

question 51

Multiple Choice

A gasoline engine absorbs 2500 J of heat at 250°C and expels 2000 J at a temperature of 50°C. What is the magnitude of the change in entropy (in J/K) for the system?

• A)6.2
• B)4.7
• C)1.4
• D)10.9
• E)3.2

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Definitions:

Cell Attraction

The phenomenon where cells move towards a specific chemical stimulus in their environment.

Root

The basic part of a word, carrying its core meaning, from which other words can be formed by adding prefixes or suffixes.

Na:

Symbol for Sodium, a chemical element with atomic number 11, essential for living organisms.

AD

Can stand for Anno Domini (in the year of our Lord), Alzheimer's disease, or, in medical prescriptions, it often refers to the right ear, from "auris dextra."