8. Air is compressed by a 15 - kW compressor from P, to P2. The air temperature is maintained constant at 25°C during this process as a result of heat transfer to the surrounding medium at 20°C. Determine the rate of entropy change of the air. State the assumptions made in solving this problem. SHOW-FREE BODY DIAGRAM

Study Guide Mix n Match:       Heat is Energy moving from low temperature to high temperature. Energy moving from high temperature to low temperature. The same as temperature.       The First Law of Thermodynamics defines The principle of entropy. The Law of heat addition. The conservation of heat.         The greater the difference in temperature between the input                         reservoir and the output reservoir of a heat engine, the Greater the efficiency. Less the efficiency. Efficiency is not affected by temperature.           A Carnot engine Can never be 100% efficient. Can sometimes be 100% efficient. Is always 100% efficient.         When a water is going through a phase change from liquid to gas It gives up 540 cal/g of heat. It absorbs 540 cal/g of heat. It makes a 100oC temperature change.          Displacement is a Scalar Quantity Vector Quantity MKS Quantity        The acceleration at the peak of the rise of a projectile is Equal…

Match each of the terms given below with the particular constraints that it implies about a thermodynamic process. isothermal isobaric A. dq = 0 Β. ΔΡ = 0 C. dw = 0 D. AV = 0 isochoric ◆adiabatic E. An = 0 F. AT=0

Q2. What is the total change in entropy when 5.0 kg Of water at 15'℃ is brought into contact with a large heat reservoir at 1000C, after the water reached the temperature of the reservoir - -4186 J/kg,K 18. O