A 10.5-g block of pure nickel(Cp = 0.445 J/g-°C) is brought to each of the temperatures below. A sealed beaker containing 14.6 g water at the temperature listed is placed on top of the nickelblock and the system is allowed to equilibrate. Calculate the final temperature of the water and the state(s) at which it exists for each scenario. You may assume no heat is lost to the beaker or the surroundings. (Also assume that the average heat capacity for liquid water is 4.180 J/g-°C). (a) initial temperature of nickel = 82.6°C; initial water sample = ice at −5.66°C The final temperature of the water is __°C, and it exists as __ (b)initial temperature of nickel = 151°C; initial water sample = ice at 0.00°C (Assume no liquid water is present.) (c) initial temperature of nickel = −34.3°C; initial water sample = vapor at 111.0°C (d)initial temperature of nickel = −13.3°C; initial water sample = liquid at 33.5°C
A 10.5-g block of pure nickel(Cp = 0.445 J/g-°C) is brought to each of the temperatures below. A sealed beaker containing 14.6 g water at the temperature listed is placed on top of the nickelblock and the system is allowed to equilibrate. Calculate the final temperature of the water and the state(s) at which it exists for each scenario. You may assume no heat is lost to the beaker or the surroundings. (Also assume that the average heat capacity for liquid water is 4.180 J/g-°C). (a) initial temperature of nickel = 82.6°C; initial water sample = ice at −5.66°C The final temperature of the water is __°C, and it exists as __ (b)initial temperature of nickel = 151°C; initial water sample = ice at 0.00°C (Assume no liquid water is present.) (c) initial temperature of nickel = −34.3°C; initial water sample = vapor at 111.0°C (d)initial temperature of nickel = −13.3°C; initial water sample = liquid at 33.5°C
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter12: Thermodynamic Processes And Thermochemistry
Section: Chapter Questions
Problem 71AP
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A 10.5-g block of pure nickel(Cp = 0.445 J/g-°C) is brought to each of the temperatures below. A sealed beaker containing 14.6 g water at the temperature listed is placed on top of the nickelblock and the system is allowed to equilibrate. Calculate the final temperature of the water and the state(s) at which it exists for each scenario. You may assume no heat is lost to the beaker or the surroundings. (Also assume that the average heat capacity for liquid water is 4.180 J/g-°C).
(a) initial temperature of nickel = 82.6°C; initial water sample = ice at
−5.66°C
The final temperature of the water is __°C, and it exists as __
(b)initial temperature of nickel = 151°C; initial water sample = ice at 0.00°C (Assume no liquid water is present.)
(c) initial temperature of nickel = −34.3°C; initial water sample = vapor at 111.0°C
(d)initial temperature of nickel = −13.3°C; initial water sample = liquid at 33.5°C
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