It's a thermodynamics question. (b) A mug of tea has been left to cool from 90•C to 18°C. If there is 0.2 kg of tea inthe mug, and the tea has specific heat capacity 4200 J K-1 kg¯', show that the entropyof the tea has decreased by 185.7 J K-. Comment on the sign of this result.

Answered: Image /qna-images/answer/e9f00970-4b48-4932-adc0-d1e55e9b8f92.jpg

Answered: the mug, and the tea has specific heat…

the mug, and the tea has specific heat capacity 4200 J K-' kg¯', show that the entropy of the tea has decreased by 185.7 J K-1. Comment on the sign of this result.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Q: 1. Helium expands polytropically through a turbine according to the process pv15 =C. The inlet…

Q: Describe an imaginary process that violates both the first and the second laws of thermodynamics.

A: Assume that there is a device which takes heat from the reservoir and produce work. The expression…

Q: A steam power plant operates essentially under steady state conditions in which steam is at a…

Q: Steam in a piston-cylinder assembly undergoes a polytropic process, with n=2, from an initial state…

Q: If state 1 is a saturated vapor. After expansion with an isobaric process, state 2 is: a.…

A: Since you have asked multiple questions in a single request we would be answering only the first…

Q: When U=f(T,v) for an ideal gas if B=1.4 E -5 /K, and if partial derivative of internal energy with…

Q: Apply the first law of thermodynamics to stationary system. Assume that heat is rejected from the…

Q: ,AH,Q,AU, and AS: (a) if the process is nonflow; (b) if the process is steady flow with AK = 0. Draw…

Q: Bernoulli's principle is an example of which law of thermodynamics. Explain why?

A: First law of thermodynamics is related to the conservation of energy.

Q: Simple question on Thermodynamics: A 30-lb iron casting, initially at 600°F, is quenched in a tank…

A: .

Q: A 60-lb aluminum bar, initially at T₂ = 190°F, is placed in a tank together with 190 lb of liquid…

Q: 434 An air-conditioning system is shown in Fig. P4.54 in which air flows over tubes carrying…

Q: The enthalpy of a system is given by the equation H = U + PV where U is the internal energy, P =…

Q: A system of 2.25 moles monatomic ideal gas is initially at pressure Pa and volume Va. The gas is…

Q: Two kilograms of nitrogen at 100K, x = 0.5 is heated in a constant pressure process to 300K in a…

Q: Apply the first law to a constant-volume process.

Q: Suppose, you are cooking meat in pressure cooker at your home. What type of system would you model?…

Q: Give for 5 practical applications of thermodynamics and explain each.

A: The field of science that deals with the transfer of energy from one form to another, as well as the…

Q: (1.3) Suppose a process increases Gibbs free energy of a system coupled to both a heat bath and…

A: Given : ∆G>0 To find : Explain

Q: he following processes occurs in a reversible thermodynamic cycle: 1-2: Reversible polytropic…

A: Given Data:- Expansion index, n2=2 Pressure at state 2, P2=9.6 bar

Q: Q1/ An ideal gas, Cp=R and Cv=R, is changed from p₁=1 bar and v₁=10m³ to =10 bar and v₂ = 1m³ by the…

Q: 2. A piston-cylinder arrangement initially contains Argon at 0.95 bar, 67 and at a volume of 0.10…

Q: A gas undergoes isobaric expansion at 0.05 bar from 0.1 m³ to 1.0 m³ when 2.0 KiloJoules of heat is…

Q: 4. You are told the initial and final states of a system and the associated change in internal…

A: To explain how to determine whether the change in internal energy was due to heat transfer(Q) or to…

Q: Explain the statement: "the laws of thermodynamics can be stated as "you cannot win , you cannot…

A: the statement: "the laws of thermodynamics can be stated as "you cannot win , you cannot break even…

Q: When a system undergoes a Isochoric process (P = 5 bar), the change in internal internal is 5 kJ and…

A: First Law of thermodynamics: The first law of thermodynamics states that "Energy can never be…

Q: When U=f(T,v) for an ideal gas if B=1.4 E -5 /K, and if partial derivative of internal energy with…

A: Relation U = f(T,v) B = 1.4 E-5 /K V = 5 m3

Q: (True or False) Work is always given by the integral ∫PdV.

A: workdone in a thermodynamic process is given as ∫PdV.

Q: Explain the following terms in relation to a system - Boundry, surroundings, equilibrium, phase,…

A: The terms boundary, surroundings, equilibrium, etc are used in thermodynamics which is related to a…

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

Q: what can happen to the universe as entropy increases?

A: Both matter and energy were interchangeable. Gravity was central in the early universe. Although it…

Q: Describe the Carnot Principles and briefly discuss the importance.

A: The Carnot Principles or Carnot theorems was created by Nicolas Leonard Sadi Carnot in 1824. This…

Q: 8. Name the widely used thermodynamic diagrams for a pure substance.

A: As per our guidelines we are supposed to solve only one question if multiple questions are asked .…

Q: Steam enters a turbine with a pressure of 30 bar, a temperature of 440 C, and velocity of 160 m/s.…

A: Note: As per our guidelines we are supposed to answer only the first 3 sub-parts. Kindly repost…

Q: Argon gas flows through a well-insulated nozzle at steady state. The temperature and velocity at the…

Q: In your own words, discuss zeroth law of thermodynamics. Avoid Plagiarism.

A: In this problem, we have to discuss about the zeroth law of thermodynamics.

Q: 3. Ten Ibm of an ideal gas is compressed in a piston-cylinder arrangement to 1/10 of its initial…

A: as per guidelines i have to solve only three subpart of your question

Q: Discuss the relationships between the various formulations of the Second Law of thermodynamics.

Q: Describe an imaginary process that violates both the first and the second laws of thermodynamics.

A: First last of thermodynamics, just discusses the changes that a system is undergoing. The…

Q: The first law of thermodynamics deals with While the zero law deals with.....

A: first law of Thermodynamics states that energy is neither created nor destroyed but it can be…

Q: process is

A: Given, Following are the process given for a TD process:Where, During a non-flow TD process (1-2)…

Q: flow through the tur- 4.105 Separate strea bine and heat exchanger arrangement shown in Fig. P4.105.…

Q: The arrangement of heat engines used to develop the thermodynamic temperature scale.

A: Consider the system having three heat engines working on the Carnot cycle.

Question

It's a thermodynamics question.

(b) A mug of tea has been left to cool from 90•C to 18°C. If there is 0.2 kg of tea in
the mug, and the tea has specific heat capacity 4200 J K-1 kg¯', show that the entropy
of the tea has decreased by 185.7 J K-. Comment on the sign of this result.

Science that deals with the amount of energy transferred from one equilibrium state to another equilibrium state.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Calculating entropy change

VIEW

Explaination

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

thermodynamics
20 g of air undergoes a closed cycle, illustrated in Figure Q2, which consists of the following 3 processes: 1-2 Constant pressure heat rejection. 2-3 Constant volume heat addition. 3-1 Isothermal expansion back to the original conditions. P (kPa) 75 1 V (m') 0.025 0.04 Figure Q2: Three process cycle Given that Rair = 287 J/kg-K, and Cy = 718 J/kg-K, and assuming ideal gas conditions throughout: (a) Determine the temperatures at points 1, 2 and 3, and the pressure at point 3. (b) Determine the work during each process, and the net work from the cycle. (c) Determine the heat transferred during each process. (d) Verify that this is a cycle.
Take your time to solve i need correct answer only
Thermodynamics. Help me out with detailed explanation. 1. Describe in detail the Joule-Thomson experiment. Include in your descriptionthe aim, apparatus, setup, results, relevant formulae and potentialapplication(s) of the experiment. 2. Explain, using appropriate example(s), how does Clausius statement of thesecond law set an upper limit to the thermal efficiency of any heat engine, andto the coefficient of performance of a refrigerator.
Define property. Explain with neat diagrams, the types of thermodynamics properties. Give at least 2 examples each
Consider the given equation U = RT(a+ T/Tc), which of the following expression gives the heat capacity of isochoric process? a.Ra+ 2RT/Tc b.R(a + T/Tc) c.Ra + R/Tc d.R(a + R /Tc)
Please solve this question in thermodynamics
Q. The thermodynamic parameters are 1. Temperature 2. Specific volume 3. Pressure 4. Enthalpy 5. Entropy The Claypeyron Equation of state provides relationship between? (A) 1 and 2 only (B) 2, 3 and 4 only (C) 3, 4 and 5 only (D) 1,2,3 and 4 only