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5.4.2 Consider two initially separate metal blocks, one of lead (M = 207.19 g/mol) and another of iron (M₁ = 55.85 g/mol) in a chamber with adiabatic walls. The lead block of mass 5.5 g is initially at 213° C and that of iron with mass 3.3 g is initially at 213 K. The are then brought into contact and allowed to thermally equilibrate. The molar heat capacities of the metals are considered constant over the temperature of experiment. At 1 bar pressure Cp.m (Fe) = 25.10 J K-1 mol-1 and Cp.m(Pb) = 26.4 J K-1 mol-1. Calculate 5.4.2.1 the final temperature. 5.4.2.2 the change in entropy of the lead block. 5.4.2.3 the change in entropy of the iron block. 5.4.2.4 the combined change in entropy of the blocks. 5.4.3 Identify evidence that that the process occurred spontaneously or not.

5.4.2 Consider two initially separate metal blocks, one of lead (M = 207.19 g/mol) and another of iron (M₁ = 55.85 g/mol) in a chamber with adiabatic walls. The lead block of mass 5.5 g is initially at 213° C and that of iron with mass 3.3 g is initially at 213 K. The are then brought into contact and allowed to thermally equilibrate. The molar heat capacities of the metals are considered constant over the temperature of experiment. At 1 bar pressure Cp.m (Fe) = 25.10 J K-1 mol-1 and Cp.m(Pb) = 26.4 J K-1 mol-1. Calculate 5.4.2.1 the final temperature. 5.4.2.2 the change in entropy of the lead block. 5.4.2.3 the change in entropy of the iron block. 5.4.2.4 the combined change in entropy of the blocks. 5.4.3 Identify evidence that that the process occurred spontaneously or not.

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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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5.4.2 Consider two initially separate metal blocks, one of lead (M = 207.19 g/mol) and another of iron (M₁ = 55.85 g/mol) in a chamber with adiabatic walls. The lead block of mass 5.5 g is initially at 213° C and that of iron with mass 3.3 g is initially at 213 K. The are then brought into contact and allowed to thermally equilibrate. The molar heat capacities of the metals are considered constant over the temperature of experiment. At 1 bar pressure Cp.m (Fe) = 25.10 J K-1 mol-1 and Cp.m(Pb) = 26.4 J K-1 mol-1. Calculate 5.4.2.1 the final temperature. 5.4.2.2 the change in entropy of the lead block. 5.4.2.3 the change in entropy of the iron block. 5.4.2.4 the combined change in entropy of the blocks. 5.4.3 Identify evidence that that the process occurred spontaneously or not.
Transcribed Image Text:5.4.2 Consider two initially separate metal blocks, one of lead (M = 207.19 g/mol) and another of iron (M₁ = 55.85 g/mol) in a chamber with adiabatic walls. The lead block of mass 5.5 g is initially at 213° C and that of iron with mass 3.3 g is initially at 213 K. The are then brought into contact and allowed to thermally equilibrate. The molar heat capacities of the metals are considered constant over the temperature of experiment. At 1 bar pressure Cp.m (Fe) = 25.10 J K-1 mol-1 and Cp.m(Pb) = 26.4 J K-1 mol-1. Calculate 5.4.2.1 the final temperature. 5.4.2.2 the change in entropy of the lead block. 5.4.2.3 the change in entropy of the iron block. 5.4.2.4 the combined change in entropy of the blocks. 5.4.3 Identify evidence that that the process occurred spontaneously or not.
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