A high temperature reservoir losing heat and hence entropy is a reversible process. A low temperature reservoir gaining a certain amount of heat and hence entropy is a reversible process. But a high temperature reservoir losing heat to a low temperature reservoir is irreversible. Why?

Q: If I know that the change in entropy of a system where heat was added is 30 J/K, and that the…

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Q: When an aluminum bar is connected between a hot reservoir at 620 K and a cold reservoir at 358 K,…

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Q: Two moles of an ideal gas occupy a volume V. The gas expands isothermally and reversibly to a volume…

A: Given  No of moles, n = 2  Initial Volume, V1 = V Final volume ,V2 = 3V  Isothermal expansion ,…

Q: When an aluminum bar is temporarily connected between a hot reservoir at 630 K and a cold reservoir…

A: Given that: Heat transferred dQ = 2.60kJ  =2600J The temperature of the hot reservoir  Th= 630 K The…

Q: A heat source generates heat at a rate of 55.0 W (1 W=1 J/s)55.0 W (1 W=1 J/s). How much entropy…

A: Given;-  A heat source generates heat at a rate of  P = 55 W = 55 J/sec  The surrounding temperature…

Q: On a winter day, a certain house loses 1.12 x 108 J of heat to the outside. What is the total change…

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Q: A container with a total volume of 2.77 L is divided in half so that there are two compartments of…

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Q: We have n moles of an ideal gas that expands reversibly through an isothermal process, when doubling…

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Q: A real (non-Carnot) heat engine, operating between heat reservoirs at temperatures of 510 K and 270…

A: Given-  T1 = 510 K T2 = 270 K W = 2.4 kJ Q= 37.6 kJ Part(a) The thermal efficiency of a real heat…

Q: A container with 41 g of a certain liquid (c = 4171 J/kg · °C, Lv=2224 kJ/kg) at 22 °C is heated up…

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Q: A real heat engine works between two heat sources. The heat absorbed by the machine from the hot…

A: Given: The heat absorbed by the machine from the heat source is, Qh = 7000 J. The temperature of…

Q: If you pour a cup of hot water into a cup of cold water, you wind up with two cups of lukewarm…

A: This process is irreversible process. After mixing we have two cups of lukewarm water which has an…

Q: 1. (a) In reaching equilibrium, how much heat transfer occurs from 1.4 kg of water at 40°C when it…

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Q: it is correct to say that an irreversible process degrads the performance of thermodynamics system…

A: Yes. It is correct to say that irreversible process degrades the performance in thermodynamic…

Q: Two moles of an ideal gas have an initial Kelvin temperature T; and absolute pressure P₁. The gas…

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Q: A 4.00 kg block of ice at 0.00 C falls into the ocean and melts. The average temperature of the…

A: The  change in entropy of the world is 60 J/K

Q: When water vapor condenses, the entropy of the water (A) increases (B) decreases (C) does not change…

A: When water vapor condenses, the entropy of the water(A) increases(B) decreases(C) does not change(D)…

Q: Which of the following is not a statement or a consequence of the second law of thermodynamics?…

A: Let's check each options one by one. 1. The internal energy of an isolated system is constant. this…

Q: There is a 300-g covered aluminum cup at 25°F being filled with 190-g of water at 90°C. Equilibrium…

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Q: A 2.50 mol sample of an ideal gas expands reversibly and isothermally at 360 K until its volume is…

A: Number of mole of ideal gas is n=2.50 mol Temperature is T=360 K Gas expanded reversibly and…

Q: 840 g of water (Cp = 4.186 J/g-K) is heated to 94 ⁰C at constant pressure. The resulting change in…

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Q: Suppose we place 47 g of ice at 273 K in contact with a heat reservoir at 309K. Heat energy…

A: Given: The mass of the ice is 47 g. The initial temperature of the ice is 273 K. The temperature of…

Q: bring about a 7.7 J/K increase in the entropy

A: The amount of energy that would have to be transferred to a room temperature environment to bring…

Q: Explain how water’s entropy can decrease when it freezes without violating the second law of…

A: Total energy is always given as the sum of energy of the system and energy of the surroundings.

Q: J of heat flows from a hot reservoir at 310 degrees celsius to a cold reservoir at 220 degrees…

A: Given:- 600 J of heat flows from a hot reservoir at 310 degrees celsius to a cold reservoir at 220…

Q: The surface of the Sun is approximately at = 700 K, and the temperature of the Earth’s surface is…

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Q: Which of the following statement is true? O The total entropy of the universe decreases when a…

A: Let's check each option one by one 1. The total entropy of the universe decreases when a reversible…

Q: Two hundred joules of heat are removed from a heat reservoir at a temperature of 200 K. What is the…

A: Given data: The heat removed from a reservoir is: Q = 200 J The temperature at which heat is…

Q: (a) Snow falls through the Earth's atmosphere in different forms of snowflakes. Entropy of a water…

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Q: One container holds 0.10 kg of water at 80 C and is warmed to 100 C by heating from contact with the…

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Q: A freezer is used to freeze 5.0 L of water completely into ice. The water and the freezer remain at…

A: The energy transferred from the water by heat can be obtained asSubstituting the values and solving…

Q: (a) In reaching equilibrium, how much heat transfer occurs from 1.2 kg of water at 40°C when it is…

A: Entropy increases in a closed system, such as the universe. But in parts of the universe, for…

Q: 5. A 2.00 Farad capacitor, an 8.00 Q resistor and a 24.0 V battery are connected in series with a…

A: Given: Capacitor,C=2FResistance,R=8ΩPotential Difference,V=24V A capacitor is an electrical energy…

Q: A boulder with a mass of 75.0 kg, starting from rest, falls a distance of 20.0 m into a shallow…

A: Mass M = 75.0 kg Temperature T = 301 k Distance h= 20.0 m

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: The temperature at the surface of the Sun is approximately 5,100 K, and the temperature at the…

A: temperature of surface of sun(TS)=5100 K Temperature of surface of earth(TE)=291K Energy(Q)=4.50 X…

Q: You have two heat sinks. One is held at a constant temperature at 20 degrees C, and the other is at…

A: Given, Temperature of first heat sink T1 = 20° C = 20 + 273 K = 293 K Temperature of second heat…