Calculate the Amount of Heat Energy Required to Convert 55 $\degree$

question 11

Multiple Choice

Calculate the amount of heat energy required to convert 55.0 g of water at 62.5^oC to steam at 124.0 $\degree$ C.(C_water = 4.18 J/g $\degree$ C; C_steam = 2.02 J/g $\degree$ C; molar heat of vaporization of liquid water = 4.07 x 10⁴ J/mol)

• A)2.25 x 10³ kJ
• B)1.23 x 10² kJ
• C)0.862 kJ
• D)1.35 x 10² kJ
• E)2.67 kJ

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Definitions:

Mucus

A sticky, slimy substance produced by mucous membranes and glands for protection and lubrication in the body, such as in the respiratory and digestive tracts.

Skeletal Muscle

A type of muscle that is attached to bones and under voluntary control, responsible for locomotion and movement.

Digestive Tract

A continuous tube running through the body from mouth to anus, where digestion and absorption of food occur.

Laryngeal Constriction

The narrowing of the larynx, which can affect breathing and voice production, often as a result of muscle spasms or inflammation.