Heat Engines: the Graph in the Figure Shows a Cycle

question 23

Multiple Choice

Heat engines: The graph in the figure shows a cycle for a heat engine for which = 35 J. What is the thermal efficiency of this engine?

• A) 29 %
• B) 57 %
• C) 14 %
• D) 23 %

---

Definitions:

Connective

Tissue in the body that supports, binds together, or separates other tissues or organs.

Nerve

A bundle of fibers composed of neurons through which electrical impulses are transmitted across the body.

Muscle

tissues in the body that have the ability to contract, causing movement of body parts and organs.

Cytology

The branch of biology that studies the structure, function, and life cycle of cells.