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A substance at a starting temperature of 375 K is cooled to 196 K. Select ALL of the statement below that must be true. OAT is positive OAT is negative OQ is positive OQ is negative O specific heat capacity is positive O specific heat capacity is negative

A substance at a starting temperature of 375 K is cooled to 196 K. Select ALL of the statement below that must be true. OAT is positive OAT is negative OQ is positive OQ is negative O specific heat capacity is positive O specific heat capacity is negative

Chemistry: An Atoms First Approach
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter7: Chemical Energy
Section: Chapter Questions
Problem 63E: Consider the dissolution of CaCl2: CaCl2(s)Ca2+(aq)+2Cl(aq)H=81.5KJ An 11.0-g sample of CaCl2 is...
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1.A substance at a starting temperature of 375 K is cooled to 196 K. Select ALL of the statement below that must be true.

 

2. 

A substance at a starting temperature of 375 K is cooled to 196 K. Select ALL of the statement below that must be true. OAT is positive OAT is negative OQ is positive O Q is negative O specific heat capacity is positive specific heat capacity is negative
Transcribed Image Text:A substance at a starting temperature of 375 K is cooled to 196 K. Select ALL of the statement below that must be true. OAT is positive OAT is negative OQ is positive O Q is negative O specific heat capacity is positive specific heat capacity is negative
A mass of 400. g of an unknown substance releases 12,500 J of heat when it cools from 150. C to 50.0 C. What is the specific heat capacity of the substance? O 0.923 J/gC O 0.313 J/gC ○ 2.45 J/gC O 0.675 J/gC
Transcribed Image Text:A mass of 400. g of an unknown substance releases 12,500 J of heat when it cools from 150. C to 50.0 C. What is the specific heat capacity of the substance? O 0.923 J/gC O 0.313 J/gC ○ 2.45 J/gC O 0.675 J/gC
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