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A lead fishing weight with a mass of 57 g absorbs 146 cal

Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro ISBN: 9780321910295 34

Solution for problem 84P Chapter 3

Introductory Chemistry | 5th Edition

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Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro

Introductory Chemistry | 5th Edition

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Problem 84P

A lead fishing weight with a mass of 57 g absorbs 146 cal of heat. If its initial temperature is 47 °C, what is its final temperature?

Step-by-Step Solution:
Step 1 of 3

Solution 84P

We have 57g of lead, which absorbs 146 cal of heat. The heat capacity of lead is = 0.128 j/g oC or 0.054 cal/g oC.

It is known that,

 dH = m C dT

Where dH is the change in heat absorbed.

m is the mass  of the sample (lead)

C is the specific  heat capacity in j/g oC 

dT(T2-T1) is the change in temperature(Celsius)

 146 cal = (57 grams) (0.054 cal/gram OC) (T2 - 47)

 146 = 3.078 (T2 -...

Step 2 of 3

Chapter 3, Problem 84P is Solved
Step 3 of 3

Textbook: Introductory Chemistry
Edition: 5
Author: Nivaldo J Tro
ISBN: 9780321910295

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A lead fishing weight with a mass of 57 g absorbs 146 cal

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