You may have noticed that in spite of carefully measuring and calculating, the values for the specific heat you determined experimentally do not match the published values for those concentrations of propylene glycol solutions. Let's explore why. 1. Rosa suggests a source of error: • Save Some of the energy from the heating coil is lost because the insulation of the container is not perfect. What type of error will this cause? That is, will the experimental values for specific heat be higher or lower than the actual values? Explain your reasoning. BI U E = E E 8 D fx 2. Max forgot to subtract the mass of the container when he measured the mass of the liquid. How will this affect his • Save results? BI U ® O fx 3. Emma, a student, makes the following claim: My calculated value for the specific heat falls between the specific heat of the 20% solution and the 40% solution. I decided that the solution in my trial is the higher concentration, the 40% solution because it is more likely that my experimental value for the specific heat is higher than the actual value for my solution. Do you agree with Emma, or disagree. Provide reasoning and evidence from your own observations and measurements from the !!!

You may have noticed that in spite of carefully measuring and calculating, the values for the specific heat you determined experimentally do not match the published values for those concentrations of propylene glycol solutions. Let's explore why. 1. Rosa suggests a source of error: • Save Some of the energy from the heating coil is lost because the insulation of the container is not perfect. What type of error will this cause? That is, will the experimental values for specific heat be higher or lower than the actual values? Explain your reasoning. BI U E = E E 8 D fx 2. Max forgot to subtract the mass of the container when he measured the mass of the liquid. How will this affect his • Save results? BI U ® O fx 3. Emma, a student, makes the following claim: My calculated value for the specific heat falls between the specific heat of the 20% solution and the 40% solution. I decided that the solution in my trial is the higher concentration, the 40% solution because it is more likely that my experimental value for the specific heat is higher than the actual value for my solution. Do you agree with Emma, or disagree. Provide reasoning and evidence from your own observations and measurements from the !!!

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 4P

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Similar questions

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9.100 Two baking sheets are made of different metals. You purchase both and bake a dozen cookies on each sheet at the same time in your oven. You observe that after 9 minutes, the cookies on one sheet are slightly burned on the bottom, whereas those on the other sheet are fine. (You are curious and you vary the conditions so you know the result is not caused by the oven.) (a) How can you use this observation to infer something about the specific heat of the materials in the baking sheets? (b) What is themathematical reasoning (equation) that you need to support your conclusion?
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hat difference is necessary for heat to flow between two systems? Can you think of an exception to your answer?
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