Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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A scientist developed a new metal alloy for use in cookware. The alloy has several properties that still need to be determined.
One such property is the specific heat. Based on the alloy's composition, the scientist hypothesizes that the specific heat will be
close to 0.490
g-°C
To determine the actual specific heat of the alloy, the scientist heats a 11.69 g piece of the alloy to 100.0 °C. He then places the
metal into an insulated container holding 50.00 g of water (CH,0 = 4.184 ) with an initial temperature of 23.6 °C. Assume
g.°C
heat loss to the surroundings is negligible.
Calculate the final temperature of the water assuming the scientist's prediction is correct.
Final water temperature=
°C
The measured final temperature of the water is 26.4 °C. Is the scientist's prediction of the specific heat close to the
true value?
Yes. The prediction is accurate within 0.050 .
g-°C *
J
No. The prediction is too low. The measured value is over 0.540
g.°C
J
O No. The prediction is too high. The measured value is below 0.440
g.°C
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Transcribed Image Text:A scientist developed a new metal alloy for use in cookware. The alloy has several properties that still need to be determined. One such property is the specific heat. Based on the alloy's composition, the scientist hypothesizes that the specific heat will be close to 0.490 g-°C To determine the actual specific heat of the alloy, the scientist heats a 11.69 g piece of the alloy to 100.0 °C. He then places the metal into an insulated container holding 50.00 g of water (CH,0 = 4.184 ) with an initial temperature of 23.6 °C. Assume g.°C heat loss to the surroundings is negligible. Calculate the final temperature of the water assuming the scientist's prediction is correct. Final water temperature= °C The measured final temperature of the water is 26.4 °C. Is the scientist's prediction of the specific heat close to the true value? Yes. The prediction is accurate within 0.050 . g-°C * J No. The prediction is too low. The measured value is over 0.540 g.°C J O No. The prediction is too high. The measured value is below 0.440 g.°C
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