What is the change in entropy of the universe in this case?

Q: in thermodynamics open systems, what does vdP really mean? and can you use it for all energy balance…

A: For any thermodynamic system, there are state variables. And Pressure P and Volume V are two such…

Q: A substance for whichκis a constantundergoes an isothermal, reversible process from aninitial state…

A:

Q: Is it possible for the entropy change of a closed system to be zero during an irreversible process?

A: The entropy change for irreversible process for closed system is given byHere, term  comes due to…

Q: A 1m^3 rigid tank contains water initially at 40degrees C and 8 percent quality. The water then…

A:

Q: 3) A frictionless piston-cylinder device contains 3 m3 of a gas at 200 kPa and 300 K. The gas is now…

A:

Q: Starting from the 1st law of thermodynamics, prove that the change in the entropy of an ideal gas…

A:

Q: Is the expression for work of a polytropic process W= p2V2- p1V1 / 1-n restricted to processes of an…

A: The expression for work of a polytropic process is restricted to processes of an ideal gas.

Q: A 40-lb aluminum bar, initially at Ta = 150oF, is placed in a tank together with 190 lb of liquid…

A:

Q: A refrigeration system uses R 12 as the refrigerant. The system is evacuated, then charged with…

A:

Q: Refrigerant-134a at 320 kPa and 40°C undergoes an isothermal process in a closed system until its…

A: To find :  The required magnitude of work  Given :  The pressure is  P1=320 kPa, The Temperature is…

Q: What is entropy and its application?

A: Entropy measures randomness or disorder of the system or it is the measure of a system's thermal…

Q: . Initially, 0.55 kg of air is contained in a piston-cylinder device at 2 MPa and 350°C. The air is…

A:

Q: A gas mixture contained in a cylinder and piston assembly. The gas mixture released 450 kJ in form…

A:

Q: Consider a closed system going through an irreversible process that includes heat transfer with the…

A: Since the heat is transferred to the surroundings from the system therefore the entropy of the…

Q: Seven kilograms of air is contained in a constant volume tank at 327 degrees C and 120 kPa, then is…

A: Calculate the entropy change of the air.

Q: Nitrogen gas leaves a compressor at 2 MPa and 120⁰C and is collected in three different cylinders,…

A:

Q: Give an example of Energy and entropy balances for a system.

A: Let's first understand entropy and energy. Entropy is basically defined as the ratio of the…

Q: Express the Bernoulli equation in three different ways using the following: a. Energies b. Pressures…

A:

Q: a) A piston-cylinder device contains a working fluid which undergoes an irreversible and…

A:

Q: A candle is burning in a well-insulated room. Taking the room (the air plus the candle) as the…

A: Solution A candle burning in a well-insulated room is considered. It is tobe determined whether…

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.