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Engineering and Tech / Fundamentals of Engineering Thermodynamics 7 / Chapter 3 / Problem 86P

Fundamentals of Engineering Thermodynamics | 7th Edition | ISBN: 9780470495902 | Authors: Michael J. Moran, Howard N. Shapiro, Daisie D. Boettner, Margaret B. Bailey

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Applying the Energy BalanceShown in Fig. P3.86 is an

Chapter 3, Problem 86P

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QUESTION:

Shown in Fig. P3.86 is an insulated copper block that receives energy at a rate of \(100 \mathrm{~W}\) from an embedded resistor. If the block has a volume of \(10^{-3} \mathrm{~m}^3\) and an initial temperature of \(20^{\circ} \mathrm{C}\), how long would it take, in minutes, for the temperature to reach \(60^{\circ} \mathrm{C}\) ? Data for copper are provided in Table A-19.

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QUESTION:

Shown in Fig. P3.86 is an insulated copper block that receives energy at a rate of \(100 \mathrm{~W}\) from an embedded resistor. If the block has a volume of \(10^{-3} \mathrm{~m}^3\) and an initial temperature of \(20^{\circ} \mathrm{C}\), how long would it take, in minutes, for the temperature to reach \(60^{\circ} \mathrm{C}\) ? Data for copper are provided in Table A-19.

ANSWER:

Solution 86P

Step 1 of 4

Here our aim is to find out the time interval taken for a copper block to change its temperature from 20°C to 60°C.

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