Determine whether device violates first law of thermodynamic

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As an engineering consultant, you are asked to review a design proposal in which an electric resistance heater is to be used in conjunction with a precision air bearing (Figure 9.26). The heater uses 100 W of electrical power and the air bearing has a constant surface temperature of 160.°F. The heater is well insulated on the outside and air enters the bearing at 40.0°F, 35.0 psia and exits at 80.0°F, 40.0 psia. The bearing is a steady flow, steady state device with an air flow rate of 35.55 lbm/h. Determine

a. Whether this device violates the first law of thermodynamics.

b. Whether this device violates the second law of thermodynamics.

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Reference no: EM131293793

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