In Most Energy Conversions,such as Burning Coal to Produce Heat

question 64

Multiple Choice

In most energy conversions,such as burning coal to produce heat,

• A)entropy increases because of heat released in the conversion.
• B)entropy decreases because of heat released in the conversion.
• C)entropy is unchanged because heat is used to ignite the coal.
• D)entropy decreases because heat is used to ignite the coal.

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Definitions:

Diseconomies of Scale

A point at which a company grows so large that the costs per unit increase with the increase in production.

Experience Curve Effects

The reduction in unit costs of production as output increases, typically due to gained efficiencies and learning over time.

Regression Analysis

A statistical method used to examine the relationship between a dependent variable and one or more independent variables.

Target Variable

In statistical modeling and machine learning, the variable that is the object of prediction or explanation.