13. 58.2 kg of sand (C = .742 J/g°C) was heated by the sun to raise its temperature from 14°C to 31°C. How much energy did the sand absorb? 14. The same sand from question 13 cooled at night from 31°C to 9°C. How much energy was released? 15. Which question (#13 or # 14) would be considered an exothermic reaction?

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...
icon
Related questions
icon
Concept explainers
Question
100%

Calculate the answers using q = mCΔT

 

13. 58.2 kg of sand (C = .742 J/g°C) was heated by the sun to raise its temperature from
14°C to 31°C. How much energy did the sand absorb?
14. The same sand from question 13 cooled at night from 31°C to 9°C. How much energy
was released?
15. Which question (#13 or # 14) would be considered an exothermic reaction?
Transcribed Image Text:13. 58.2 kg of sand (C = .742 J/g°C) was heated by the sun to raise its temperature from 14°C to 31°C. How much energy did the sand absorb? 14. The same sand from question 13 cooled at night from 31°C to 9°C. How much energy was released? 15. Which question (#13 or # 14) would be considered an exothermic reaction?
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps with 3 images

Blurred answer
Knowledge Booster
Thermochemistry
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY