Question
Asked Nov 1, 2019
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A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 6.50kg of water at 24.2°C. During the reaction 88.2kJ of heat flows out of the flask and into the bath.Calculate the new temperature of the water bath. You can assume the specific heat capacity of water under these conditions is 4.18·J·g−1K−1. Be sure your answer has the correct number of significant digits.

 

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Expert Answer

Step 1

The specific heat can be defined as the amount of heat per unit mass that is needed to raise the temperature of given substance by one degree Celsius.

The specific heat of water is 4.186 joule/gram °C. This can be used to calculate the heat required to raise the temperature for given substance.

Step 2

The relation between heat change and specific heat is shown below;

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m xc x AT Here q Amount of heat supplied m Mass of the substance c Substance's specific heat AT Change in temperature

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Step 3

Given:  

q = 88.2 kJ = 88.2 x 103 J
m = 6.50 kg = 6500 g
c = 4.186 j/g °C
Tf = final temperature =...

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