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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

Prepare a graph of specific heat capacities for metals versus their atomic weights. Combine the data in Figure 5.4 and the values in the following table. What is the relationship between specific heat capacity and atomic weight? Use this relationship to predict the specific heat capacity of platinum. The specific heat capacity for platinum is given in the literature as 0.133 J/g · K. How good is the agreement between the predicted and actual values?

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Interpretation Introduction

Interpretation:

The graph comparing specific heat capacity with their atomic weights of metals and predict for the specific heat capacity of platinum has to be prepared.

Concept Introduction:

The specific heat capacity (C) is the energy transferred as heat that is required to raise the temperature of 1gram of substance by one kelvin.

Explanation

Given the table for specific heat capacity (C) and atomic weights of metals

Metalsspecific heat capacity (C) in J/gKatomic weightMolar heat capacity in J/molK
Al0.89726.9824.2
Ti0.52247.86724.9
Cr0.45051.9923.3
Fe0.44955.8425.1
Cu0.38563.5424.5
Ag0.236107.8625.4
Au0.129196.9625.4
Pb0.127207.226.3
Pt0.133195.08425.9

Table 1

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