Ethylene Glycol, Used as a Coolant in Automotive Engines, Has

question 54

Multiple Choice

Ethylene glycol, used as a coolant in automotive engines, has a specific heat capacity of 2.42 J/g°C. Calculate q when 3.65 kg of ethylene glycol is cooled from 132°C to 85°C.

• A) -1900 kJ
• B) -420 kJ
• C) -99 kJ
• D) -0.42 kJ
• E) -4.2 × 10^-6 kJ

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Definitions:

Budget Constraint

A representation of all the combinations of goods and services that a consumer can afford with a fixed income and prices.

Indifference Curve

A graph representing different bundles of goods between which a consumer is indifferent, showing combinations that give the consumer the same level of satisfaction.

Income

The amount of money or its equivalent received during a period of time in exchange for labor, goods, or services, or as profit on capital.

Indifference Curves

Graphical representations in economics showing combinations of goods among which a consumer is indifferent, helping to analyze consumer choices.