REMARKS If this problem is solved assuming (wrongly) that all the ice melts, a final temperature of I = -16.5°C is obtained. The only way that could happen is if the system were not isolated, contrary to the statement of the problem. In the exercise, you must also compute the thermal energy needed to warm the ice to its melting point. QUESTION What effect would doubling the initial amount of liquid water have on the amount of ice melted? (Select all that apply.) O The final temperature will be lower. O The final temperature will be the same. O Half as much of the ice will melt. O Twice as much of the ice will melt. O The final temperature will be higher. O All the ice will melt.
REMARKS If this problem is solved assuming (wrongly) that all the ice melts, a final temperature of I = -16.5°C is obtained. The only way that could happen is if the system were not isolated, contrary to the statement of the problem. In the exercise, you must also compute the thermal energy needed to warm the ice to its melting point. QUESTION What effect would doubling the initial amount of liquid water have on the amount of ice melted? (Select all that apply.) O The final temperature will be lower. O The final temperature will be the same. O Half as much of the ice will melt. O Twice as much of the ice will melt. O The final temperature will be higher. O All the ice will melt.
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Question
Transcribed Image Text:REMARKS If this problem is solved assuming (wrongly) that all the ice melts, a final temperature of
T = -16.5°C is obtained. The only way that could happen is if the system were not isolated, contrary to
the statement of the problem. In the exercise, you must also compute the thermal energy needed to
warm the ice to its melting point.
QUESTION What effect would doubling the initial amount of liquid water have on the amount of ice
melted? (Select all that apply.)
O The final temperature will be lower.
The final temperature will be the same.
O Half as much of the ice will melt.
Twice as much of the ice will melt.
| The final temperature will be higher.
O All the ice will melt.
PRACTICE IT
Use the worked example above to help you solve this problem. A 4.90 kg block of ice at 0°C is added to
an insulated container partially filled with 11.9 kg of water at 15.0°C.
(a) Find the final temperature, neglecting the heat capacity of the container.
°C
(b) Find the mass of the ice that was melted.
|kg
EXERCISE
HINTS: GETTING STARTED | "'M STUCK!
If 7.70 kg of ice at -5.00°C is added to 12.0 kg of water at 15°C, compute the final temperature.
T =
°C
How much ice remains, if any?
m =
kg
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