Change in specific ENTROPY in the ideal gas from state 1 to state 2.

Q: Heat flows from a hot reservoir at 800 K to another reservoir at 250 K. H entropy change of the…

A: Given, Temperature of hot reservoir = Th = 800 K Temperature of cold reservoir = Tc = 250 K Total…

Q: There are cooled 4 lb/min of oxygen at constant volume from 200 psia and 2400° R to 800° R For…

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Q: There is a rigid tank initially with water in a critical state, which after a heat transfer process…

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Q: A cycle starts with an adiabatic compression of the air from state a with a volume V3 to state b…

A: For solution refer below images.

Q: If 6 liters of air at a pressure of 100 kPaa and 25 0 C are compressed reversibly according to PV 2…

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Q: 4.27 A 400-L tank, A (see Fig. P4.27) contains argon gas at 250 kPa, 30°C. Cylinder B, having a…

A: Write the given values with the suitable variables. P1=250 kPaP2=150 kPaV1=400 L=0.4 m3 Here, P1,…

Q: Q2: Steam at 7 bar, dryness fraction 0.96 is throttled down to 3.5 bar calculate the change of…

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Q: I do not understand how to fix state 3 with the given information. Without knowledge of state 3 or…

A: pressure ratio, rp = 1000/100 = 10Temperature at the exit of the turbine, T4 = 450 CIsentropic…

Q: 4.43 Air expands through a turbine from 10 bar, 900 K to 1 bar. 500 K. The inlet velocity is small…

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Q: Two vessels A and B of different sizes are connected by a pipe with a valve. Vessel A contains 140 L…

A: Given data:

Q: In a constant pressure process, 325 KJ of heat are added to 6.55 kg of ideal gas (R=208 J/kg-K and k…

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Q: One-quarter Ibmol of oxygen gas (O₂) undergoes a process from p₁ = 20 lb/in². T₁ = 500°R to p₂ = 150…

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Q: find the work done in the whole process in kJ. Draw the P-V diagram for the cycle.

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Q: 2.A piston cylinder arrangement contains steam at 10MPaa saturated liquid. Heat was transferred…

A: PHigher =10 Mpa or 100 bar Plower=2 Mpa or 20 bar Now with the help of steam table we need to…

Q: A piston-cylinder system contains 1 kg of air at (V1, P1, T1). The air is heated at constant…

A: Given data: The mass of the air is, m=1 kg. The equation of polytropic compression curve is, PV3=C.…

Q: As shown in the figure, a 260-ft³ tank contains 25 lb of H20 initially at 30 lbf/in2. The tank is…

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Q: vessel of volume 0.04 m3 contains a mixture of saturated water and steam at a temperature of 250°C.…

A: Handwriting.jpg

Q: 200Kg/min superheated steam at 40 bar and 350C enters a turbine through a 7.5cm ID pipe. It exits at…

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Q: Inside the cylinder-piston is water with at-200C. During isothermal process, 550 kJ of heat is…

A: Let Q is the heat supplied to the reservoir which is at constant temperature T(K). Since, it is a…

Q: A monatomic ideal gas is compressed isothermally from a volume of 2.0m^3 to 1.0 m^3. The initial…

A: (a) Write an initial volume of a gas. V1=2 m3   Write a final volume of a gas. V2=1 m3   Write an…

Q: Two rigid tanks are filled with water. Tank A is 0.2 m³ at 100 kPa, 150°C and tank B is 0.3 m³ at…

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Q: Kittel Ch3-1. Free energy of a two state system. (a) Find an expression for the free energy as a…

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Q: Identify the Enthalpy of State 1 to 4 (h1, h2, h3 and h4) Note: Point 2 and 4 are saturated. Process…

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Q: Air as ideal gas in the closed system, find the change of entropy from the initial to the final…

A: In the end I have taken the help of unit conversion to get the results in desired unit.

Q: Define the Energy change, Energy at final state, Energy at initial state?

A: Energy can change from one form to another. For example, chemical energy might change to heat…

Q: Q2: One mole of air at P: and temperature Ti is compressed at constant volume till its pressure…

A: Given data: The initial pressure is, P1=P. The pressure at 2 is, P2=2P. The initial temperature is,…

Q: A piston-cylinder system contains R-134a as shown in the figure. Two linear springs with the same…

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Q: Where did you get the value of entropy for state 1?

A: In thermodynamics, property table provides the value of various properties of system such as…

Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.