what is true about the coal-powered steam locomotive? A- it is an example of an external combustion engine. B- it’s an example of an internal combustion engine.

Q: Find the work done by the engine cycle shown in the P-V diagram below. P(kPa) Q23 3 200 - Q12 Work…

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Q: A Carnot engine is operated between two energy tanks with temperatures of 450 K and 350 K. and they…

A: For Carnot engine: TH = 450 K TL = 350 K Heat received QH = 1000 J   Find: a- how much energy the…

Q: Carnot engines can achieve the maximum theoretically possible efficiency for a heat engine.…

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Q: Which one of the following statements is NOT a consequence of the second law of thermodynamics? IN

A: Introduction:Let us first understand 2nd law of thermodynamics and understandvarious statements…

Q: The Carnot engine takes 1,000 kcal from a reservoir of 627°C and releases it to a reservoir of 27°C.…

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Q: Two carnot engines are connected to each other. The second engine uses the heat flow out of the…

A: Since two carnot engines are attached in series. Heat released by the first engine will be absorbed…

Q: Determine the efficiency of a Carnot engine if the work it does is 9.00 times less than the heat…

A: Efficiency of Carnot engine is,  η=work doneheat flow  =wQ

Q: Calculate the efficiency of a heat engine which takes in 7 million Joules of energy into the hot…

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Q: A heat engine operates in a Carnot cycle between 70.0°C and 345°C. It absorbs 20,800 J of energy per…

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Q: What happens to the efficiency of the heat engine when the amount of heat it absorbs from the hot…

A: Given data:  Heat absorbed from hot reservoir = Heat released to cold reservoir Qh = Qc Required:…

Q: QUESTION 7 A particular heat engine has a mechanical power output of 5.00 kW and an efficiency of…

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Q: 50. A monatomic ideal gas undergoes the reversible cyclic process (ABCA) shown in the PV diagram.…

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Q: A Carnot heat engine receives heat from a thermal energy reservoir at 1150°C and has a thermal…

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Q: Which is the most effective way to increase the efficiency of a Carnot heat engine:     a)…

A: The efficiency of Carnot engine is defined as, η=1-T2T1 Let the temperature of high-temperature…

Q: A cycle is to be designed to have an “efficiency of 0.78 between the temperature reservoirs . If the…

A: Given a cycle is to be designed to have an “efficiency of 0.78 between the temperature reservoirs .…

Q: carnot engine operates using a cold reservior and a hot reservior. If the temperature of the cold…

A: Concept   Carnot Engine  T1= temperature of cold reservoir T2=temperature of heat reservoir (n)…

Q: 2. What is a Carnot Engine and how is its efficiency different from a real engine and or a heat…

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Q: How much work is done on the gas in the process shown, in Joule?

A: A PV-diagram showing a thermodynamic process. Note: 1 kPa=1000 Pa 1 m3=106 cm3 1 J=1 Pa·m3 Find:…

Q: A Carnot engine operates in a Carnot cycle between a heat source at 550 °C and a heat sink at 20 °C.…

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Q: Explain why heat engines are never 100% efficient?

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Q: In which state are the entropy changes equal to zero? Select one: a. Thermodynamic equilibrium O b.…

A: In an isolated system dQ= 0 as there will be no thermal interaction with surroundings From Clausius…

Q: Give 3 examples of change in entropy of a system whether an increase or decrease in entropy in a…

A: Answer :- Entropy In simple way we can express as :-                      entropy is defined as…

Q: Which of the following options represents the main characteristic of a heat engine? A. Heat flows…

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Q: Calculate the maximum possible efficiency of a heat engine that uses surface lake water at 20.7°C as…

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Q: An airplane's jet engine is what kind of heat engine? O a. External O b. Both Oc. Internal O d.…

A: “Since you have posted a question with multiple sub parts, we will provide the solution only to the…

Q: The choices below are all efficiency ratings for heat engines. Which is a Carnot engine?

A: Efficiency of any Carnot engine is always less than 1.                                  η=1-T2T1<…

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: If energy is always conserved, never created or destroyed, then why do most of the machines in our…

A: SOlution: To explain If energy is always conserved, never created or destroyed, then why do most of…

Q: efficiency of a carnot engine is 50%. The temperature of the hot reservoir is kept constant. By what…

A: A

Q: The coefficient of performance of the heat pump used as a cooler (illustrated below) is x-3. What is…

A: Given: The coefficient of performance is 3.

Q: A Carnot engine has an efficiency ecarnot= 0.600. The temp. of the hot reservoir is 875 K. part a)…

A: Given:Carnot efficiency, ecarnot = 0.600Temperature of the hot reservoir, TH = 875 KHeat transferred…

Q: 10. A car motor releases 700 J of energy into the cooling system. It is a combustion motor which Is…

A: given: heat release QC = 700 J efficiency η=50 % we have to find work done: W and if heat absorbed…

Q: Q6. Which quantity needs to be decreased (TL or TH) to increase the efficiency of a Carnot engine…

A: efficiency = 1-(Tl/Th) where Tl is lower temperature  Th is higher temperature.

Q: 1. A certain gasoline engine has an efficiency of 31%. What would the hot reservoir temperature be…

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Q: Physical systems work in a “one-way street” – the amount of information we have about the state…

A: Energy : It is the ability of an object to do work. There are different types of energy. Example:…

Q: Why is the Diesel cycle more efficient (in thermodynamic terms) than the Otto cycle? a) Because the…

A: Diesel engines have more efficient than the otto cycle .

Q: What is the efficiency of a Carnot engine operating as heat engine between two reservoirs at 500K…

A: The efficiency of the Carnot engine is 0.8.

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: 21. A heat engine would violate the second law of thermodynamics if it * O A. changed all the heat…

A: For a heat engine , it  must reject some of the heat it receives from the high-temperature source to…

Q: Which of the following statements about a heat engine must be true?   i) Energy is taken in from a…

A: Statement (i) is false because heat is taken from a hot source and given to a cold sink in order for…

First law of Thermodynamics

The word thermodynamics consists of two words: thermo- and dynamics. Dynamics means the study of motion. The field of thermodynamics is all about the study of the movement of heat. In a more meaningful way, it is stated as the study of the transfer of energy. Energy transfer is something that we encounter in day-to-day life. Automobiles, chemical reactions, refrigerators, and power generators work on the basis of thermodynamic principles.