Jennifer and Mark were planning a picnic for later in the afternoon. Jennifer baked a cake and was running out of time before the event and needed the cake to cool faster so she could ice it. Mark bought some sodas for the party and needed to cool them so they would be refreshing for their guests. a) Jennifer decided to stick the cake in the refrigerator instead of setting it out on the counter to cool, because she said it would cool faster. Mark believed it didn't matter where she put it, as long as it was out of the oven it would cool at the same rate. What would your suggestion to Jennifer be to help her ice the cake before the party? (Who do you agree with and why?)

Jennifer and Mark were planning a picnic for later in the afternoon. Jennifer baked a cake and was running out of time before the event and needed the cake to cool faster so she could ice it. Mark bought some sodas for the party and needed to cool them so they would be refreshing for their guests. a) Jennifer decided to stick the cake in the refrigerator instead of setting it out on the counter to cool, because she said it would cool faster. Mark believed it didn't matter where she put it, as long as it was out of the oven it would cool at the same rate. What would your suggestion to Jennifer be to help her ice the cake before the party? (Who do you agree with and why?)

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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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

Jennifer and Mark were planning a picnic for later in the afternoon. Jennifer baked a
cake and was running out of time before the event and needed the cake to cool
faster so she could ice it. Mark bought some sodas for the party and needed to cool
them so they would be refreshing for their guests.
a) Jennifer decided to stick the cake in the refrigerator instead of setting it out on the
counter to cool, because she said it would cool faster. Mark believed it didn't matter
where she put it, as long as it was out of the oven it would cool at the same rate.
What would your suggestion to Jennifer be to help her ice the cake before the party?
(Who do you agree with and why?)
b) Mark placed his sodas in a cooler with ice. He checked back in about an hour or so
and noticed the ice was melting. He thought that was odd and wasn't sure what was
happening. Explain to Mark why the ice is melting as the cans are placed in the
cooler before the party.
c) Explain the phase change happening to the ice in part b). Make sure to explain
what is happening to the atoms, energy and their movement as they change phase. Is
this phase change heating or cooling?

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