All Real Engines Are Less Efficient Than the Carnot Engine

question 54

Multiple Choice

All real engines are less efficient than the Carnot engine because

• A) they do not operate through the Otto cycle.
• B) they do not operate through a reversible cycle.
• C) the working substance does not maintain a constant volume through the cycle.
• D) the working substance does not maintain a constant pressure through the cycle.
• E) the working substance does not maintain a constant temperature through the cycle.

---

Definitions:

Aggregate-Demand Curve

A curve showing the relationship between the total quantity of goods and services demanded across all sectors of an economy and the overall price level, ceteris paribus.

Domestic Goods

Products and services that are produced within a country's borders and are consumed domestically.

Price Level

The current standard price across the broad array of goods and services in the economic sphere.

Predict Recessions

The process of forecasting a period of economic decline across the economy, typically recognized by a decrease in GDP in two successive quarters.