A 140-G Block of Copper Is Taken from a Kiln

question 17

Multiple Choice

A 140-g block of copper is taken from a kiln and quickly placed into a beaker of negligible heat capacity containing 290 g of water.The water temperature rises from 6.8°C to 26.8°C.Given c_Cu = 0.10 cal/g⋅°C,and c_water = 1.00 cal/g⋅°C,what was the temperature of the kiln?

• A)720°C
• B)387°C
• C)682°C
• D)441°C
• E)68.2°C

---

Definitions:

Body Fluids

Liquids produced by the body, such as blood, saliva, and urine, that maintain bodily functions and protect against infection.

Major Proteins

Essential, large molecules made up of amino acids that play critical roles in the body's structure, function, and regulation of tissues and organs.

Macrophages

A type of white blood cell that engulfs and digests cellular debris, foreign substances, microbes, and cancer cells in a process called phagocytosis.

Inflammation

The body's response to injury or infection, marked by redness, warmth, swelling, and pain.