4. If 80J of heat flow from a 40°C block into a 20°C block, what is the change in entropy of both blocks? What is the total change in entropy of both blocks combined?
Q: Consider mixing some of the ice water with the hot water and vice versa so that the two reservoirs…
A: The process of mixing cold water with hot water and vice versa is irreversible.Entropy formation…
Q: Half of a 1.5-kg block of ice melts at 0.00°C. What is the change in entropy of the ice? Note that…
A: given that,mass, m=1.5 kgheat of fusion L=333kJkgT=0°C=273 K
Q: 78. ao On a cold day, 24 500 J of heat leaks out of a house. The inside temperature is 21 °C, and…
A: The change in entropy of the house is given by ∆Shouse=QT=-24500J21°C+273.15K=-83.29 J/K
Q: 1. If 2 kg of liquid water at 360 K are mixed adiabatically and at constant pressure with 3 kg…
A: m1=2 kg T1 =360Km2=3 kgT2 = 380 KFinial Temperature of the mixture.2×c×(360-T)…
Q: 8. Suppose the 1,000 kJ is needed to raise the 12 kg of now gaseous nitrogen N, from boiling…
A: Given: E=1000 kJ Ti=-196+273= 77 K Tf=20+273=293 K
Q: When an aluminum bar is connected between a hot reservoir at 700 K and a cold reservoir at 300 K,…
A: Temperature of hot reservoir;T1 =700 K Temperature of cold reservoir;T2 =300 K Heat transferred…
Q: 47 A 20 g ice cube at -15°C is placed in a lake whose temperature is 15°C. Calculate the change in…
A: When ice cube at temperature T1is mixed with water at T2 temperature, the system undergoes energy…
Q: In every cycle of its operation, a Carnot engine takes in 640 J of heat from a reservoir at 380 K…
A: Given, heat taken from reservoir, Q = 640 J temperature of reservoir, TH = 380 K TC = 300 K
Q: 48. On a hot summer day, 4.00×10° Jof heat transfer into a parked car takes place, increasing its…
A: Given Heat transfer Q=4×106 J T1=35 T2=45
Q: Energy is added as heat to 250 g of water at 10°C, raising its temperature one Celsius degree. a)…
A: Given: Mass of water = 250 gm Initial temperature of the gas = 10 degree Celsius = 283 K Final…
Q: 9. A neatly arranged bookshelf is very orderly system and has low entropy why is it safe to assume…
A: Entropy, the measure of a system's thermal energy per unit temperature that is unavailable for doing…
Q: 8. Air is compressed by a 15 - kW compressor from P, to P2. The air temperature is maintained…
A: solution- assumptions- 1. This is a steady flow process. 2. Air is an ideal gas. 3. Potential energy…
Q: Part 1: Five thousand kilocalories (5000 kcal) of heat flows from a high temperature reservoir at…
A: Entropy change is related to the amount of heat transferred at a temperature T as, ∆S=∆QT∆Q is the…
Q: A. Rank these engines on the basis of the change in entropy of the gas during the isothermal…
A: (A)The change in entropy of the system is,The change in entropy of the gas each phase of the cycle…
Q: On a winter day, a certain house loses 5.20 x 10° J of heat from the warm 25°C interior to the cold…
A: As per Bartleby rules, we are to answer the first three sub-parts of a question when specific…
Q: For the expansion of an ideal gas into a vacuum (system) which of the following will lead to the…
A:
Q: 7. The entropy of 500g of water increases or decreases as it undergoes temperature change or phase…
A: Water is going through a phase change at T=0oC with latent heat of fusion as L=3.33×105 J/kg.…
Q: 7. Suppose a box containing 27 cells for 4 particles moving around to occupy. If the number of cells…
A: In case I Entropy is given by S1=kBln(27C4) In case ll S2=kBln(8C4) KB is Boltzman Constant.
Q: An avalanche of ice and snow of mass 1800 kg slides a vertical distance of 160 m down a…
A: Basic concept of Entropy & Second Law of Thermodynamics: The Second Law of Thermodynamics states…
Q: 5. If the change in system entropy for a given process is -8.3 J/(mole.K): (A) What can be known…
A: Given, change in system entropy for a given process is -8.3 J/(mole. K) ∆Ssys = -8.3 Jmol K We know…
Q: hat is the decrease in entropy of 25.0 g of water that ndenses on a bathroom mirror at a temperature…
A: Entropy change is the ratio of heat given to temperature
Q: Heat flows into 1kg of ice at 0°C, melting it, then warming the liquid up to 100°C, then boiling the…
A: Given, Mass of ice, m=1kg The temperature when ice melting starts, T1=0°C The temperature when…
Q: 1. Calculate the length of time a 950-watt blow dryer would have to blow on an iron pipe (0.75 cm…
A:
Q: What is the change in entropy of 1,000 kg of ice at 0.0˚ when it melts and 15. What is the change in…
A:
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