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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

You did an experiment in which you found that 59.8 J was required to raise the temperature of 25.0 g of ethylene glycol (a compound used as antifreeze in automobile engines) by 1.00 K. Calculate the specific heat capacity of ethylene glycol from these data.

Interpretation Introduction

Interpretation:

Heat capacity of ethylene glycol of definite mass should be identified.

Concept Introduction:

Heat energy required to raise the temperature of 1g of substance by 1k.

Energy gained or lost can be calculated using the below equation.

  q = C × m × ΔT

Where,

  q= energy gained or lost for a given mass of substance (m)

  C =specific heat capacity,

  ΔT= change in temperature.

Explanation

Given data,

  q = 59.8Jm=25gΔT=1K

Rearrange and Substitute for the above equation as

  q = C × m × ΔT

  C=59

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