Explanation Write the expression for the heat energy transferred to the liquid, Q = m c Δ T = ( ρ V ) c Δ T (I) Here, Q is the heat energy transferred to the liquid, m is the mass of the liquid, c is the specific heat of the liquid, ρ is the density of the liquid, V is the volume of the liquid and Δ T is the temperature difference. Write the expression for the rate of power supplied, p = d Q d t (II) Here, p is the rate of power supplied and t is the time taken. Substitute (I) in (II), p = ρ ( d V d t ) c Δ T = ρ R c Δ T (III) Here, R is the volume flow rate. Rewrite the above equation for c , c = p ρ R Δ T (IV) Conclusion: Substitute 200 W for p , 900 kg/m 3 for ρ , 2

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN: 9781133104261

Author: Raymond A. Serway, John W. Jewett

Publisher: Cengage Learning

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Chapter 17, Problem 71P

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The specific heat of the liquid .

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Chapter 17, Problem 70P

Chapter 17, Problem 72P

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Principles of Physics: A Calculus-Based Text

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