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Here you are invited to explore the implications of the temperature dependence of the heat capacity for the enthalpy. (a) The heat capacity of a substance is often reported in the form Cp,m(T) = a + bT + c/T2. Use this expression to make a more accurate estimate of the change in molar enthalpy of carbon dioxide when it is heated from 15 °c to 37 °c, givena= 44.22 J K-1 mol-1, b = 8.79 x 10-3 J K-2 mol-1, and c = -8.62 x 105 J K mol-1. You will need to integrate dH = Cp(T)dT. (b) Use the expression from part (a) to determine how the molar enthalpy of the substance changes over that limited temperature range. Plot the molar enthalpy as afunction of temperature.

Here you are invited to explore the implications of the temperature dependence of the heat capacity for the enthalpy. (a) The heat capacity of a substance is often reported in the form Cp,m(T) = a + bT + c/T2. Use this expression to make a more accurate estimate of the change in molar enthalpy of carbon dioxide when it is heated from 15 °c to 37 °c, givena= 44.22 J K-1 mol-1, b = 8.79 x 10-3 J K-2 mol-1, and c = -8.62 x 105 J K mol-1. You will need to integrate dH = Cp(T)dT. (b) Use the expression from part (a) to determine how the molar enthalpy of the substance changes over that limited temperature range. Plot the molar enthalpy as afunction of temperature.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Here you are invited to explore the implications of the temperature dependence of the heat capacity for the enthalpy. (a) The heat capacity of a substance is often reported in the form Cp,m(T) = a + bT + c/T2. Use this expression to make a more accurate estimate of the change in molar enthalpy of carbon dioxide when it is heated from 15 °c to 37 °c, given
a= 44.22 J K-1 mol-1, b = 8.79 x 10-3 J K-2 mol-1, and c = -8.62 x 105 J K mol-1. You will need to integrate dH = Cp(T)dT. (b) Use the expression from part (a) to determine how the molar enthalpy of the substance changes over that limited temperature range. Plot the molar enthalpy as a
function of temperature.

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