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 beclose to 0.490g.°CTo determine the actual specific heat of the alloy, the scientist heats a 11.60 g piece of the alloy to 100.0 °C. He then places theJmetal into an insulated container holding 50.00 g of waterCH,0= 4.184c ) with an initial temperature of 23.5 °C. Assumeheat loss to the surroundings is negligible.Calculate the final temperature of the water assuming the scientist's prediction is correct.Final water temperature=°CThe measured final temperature of the water is 26.4 °C. Is the scientist's predictionthe specific heat close to thetrue value?No. The prediction is too low. The measured value is over 0.540 r.g.°CJNo. The prediction is too high. The measured value is below 0.440g.°CJYes. The prediction is accurate within 0.050g.°C

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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 c: To determine the actual specific heat of the alloy, the scientist heats a 11.60 g piece of the alloy to 100.0 °C. He then places the metal into an insulated container holding 50.00 g of water 1,0 = 4.184 ) with an initial temperature of 23.5 °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? No. The prediction is too low. The measured value is over 0.540 . J No. The prediction is too high. The measured value is below 0.440 g.°C . Yes. The prediction is accurate within 0.050 r. ООО

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 c: To determine the actual specific heat of the alloy, the scientist heats a 11.60 g piece of the alloy to 100.0 °C. He then places the metal into an insulated container holding 50.00 g of water 1,0 = 4.184 ) with an initial temperature of 23.5 °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? No. The prediction is too low. The measured value is over 0.540 . J No. The prediction is too high. The measured value is below 0.440 g.°C . Yes. The prediction is accurate within 0.050 r. ООО

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter21: Heat And The First Law Of Thermodynamics

Section: Chapter Questions

Problem 24PQ

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Concept explainers

Energy transfer

The flow of energy from one region to another region is referred to as energy transfer. Since energy is quantitative; it must be transferred to a body or a material to work or to heat the system.

Molar Specific Heat

Heat capacity is the amount of heat energy absorbed or released by a chemical substance per the change in temperature of that substance. The change in heat is also called enthalpy. The SI unit of heat capacity is Joules per Kelvin, which is (J K-1)

Thermal Properties of Matter

Thermal energy is described as one of the form of heat energy which flows from one body of higher temperature to the other with the lower temperature when these two bodies are placed in contact to each other. Heat is described as the form of energy which is transferred between the two systems or in between the systems and their surrounding by the virtue of difference in temperature. Calorimetry is that branch of science which helps in measuring the changes which are taking place in the heat energy of a given body.

Question

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 11.60 g piece of the alloy to 100.0 °C. He then places the
J
metal into an insulated container holding 50.00 g of water
CH,0
= 4.184
c ) with an initial temperature of 23.5 °C. Assume
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
the specific heat close to the
true value?
No. The prediction is too low. The measured value is over 0.540 r.
g.°C
J
No. The prediction is too high. The measured value is below 0.440
g.°C
J
Yes. The prediction is accurate within 0.050
g.°C

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