Assume That 10 G of Steam Is Added to 100 $\circ$

question 14

Multiple Choice

Assume that 10 g of steam is added to 100 g of water initially at 19 ^$\circ$ C.The water is inside an aluminum cup of mass 35 g.The cup is inside a perfectly insulating calorimetric container that prevents heat flow from the outside environment.Find the final temperature of the water after equilibrium is reached. Specific heat of water: 4.19 kJ/(kg * K) or 1.00 cal/(g * K)
Specific heat of aluminum: 922 J/(kg * K) or 0.22 cal/(g * K)
Latent heat of fusion for water: 334 kJ/kg or 79.7 cal/g
Latent heat of vaporization for water: 2260 kJ/kg or 539 cal/g

• A)25 \(\circ\) C
• B)26 \(\circ\) C
• C)31 \(\circ\) C
• D)72 \(\circ\) C
• E)76 \(\circ\) C

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Definitions:

Larynx

A structure in the throat containing the vocal cords; it is involved in breathing, producing sound, and protecting the trachea against food aspiration.

Alveoli

are the tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place.

Gas Exchange

The biological process by which gases (mainly oxygen and carbon dioxide) are transferred between the blood and the external environment during the act of breathing.

Vocal Folds

Muscular membranes in the larynx that produce sound when air is expelled through them, also known as vocal cords.