Thermodynamics HW Solutions 15

Thermodynamics HW Solutions 15 - Chapter 1 Basics of Heat...

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Chapter 1 Basics of Heat Transfer Assumptions 1 Both the water and the iron block are incompressible substances with constant specific heats at room temperature. 2 The system is stationary and thus the kinetic and potential energy changes are zero, ΔΔ KE PE == 0 and E U = . 3 The system is well-insulated and thus there is no heat transfer. Properties The specific heats of water and the iron block at room temperature are C p, water = 4.18 kJ/kg· ° C and C p, iron = 0.45 kJ/kg· ° C (Tables A-3 and A-9). The density of water is given to be 1000 kg/m³. Analysis We take the entire contents of the tank, water + iron block, as the system . This is a closed system since no mass crosses the system boundary during the process. The energy balance on the system can be
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This note was uploaded on 01/14/2012 for the course PHY 4803 taught by Professor Dr.danielarenas during the Fall '10 term at UNF.

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