A Walnut Stuck to a Pin Is Burned Beneath a Can

question 82

Multiple Choice

A walnut stuck to a pin is burned beneath a can containing 100.0 grams of water at 21°C. After the walnut has completely burned, the water's final temperature is a warmer 28°C. How much heat energy arose from the burning walnut?

• A)3,000 joules
• B)9,000 joules
• C)5,000 joules
• D)2,000 joules

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Definitions:

Right Triangle

A triangle with one angle measuring exactly 90 degrees, essential in understanding the geometrical and trigonometrical principles.

Adjacent Angle

Adjacent angles are two angles that have a common vertex and a common side but do not overlap, often found in geometric shapes and figures.

Hypotenuse

The side facing the right angle in a right-angled triangle, known for being the longest.

°

A symbol used to denote degrees in measures of angles, temperature, or quality.