Summary of first law of thermodynamics

Q: The combined molecular kinetic energies of molecules in a cool lake are greater than the combined…

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Q: 67) 2 cubic meter containing 100 mol of a diatomic gas and at a pressure of 6 ATM is allowed to…

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Q: engine is represented on a PV- diagram, then the area enclosed by the curve is equal CO the heat…

A: In P-V cycle of heat engine Pressure values are taken on y axis Volume values are taken on x axis…

Q: An ideal heat engine would have 100 percent efficiency if its input hot reservoir were A) 1000…

A: The efficiency of a cyclic heat engine is given by- η=1-TCTHwhere,η is efficiencyTC is temperature…

Q: What does the term absolute pressure mean? Please explain chermodynamics terms. Thank you! in

A: Absolute pressure :-                                   The value of pressure which is being measured…

Q: Can the outlet temperature of the cold fluid in a heat exchanger be higher than the outlet…

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Q: 11. A constant pressure of 10 Pa is applied to a 1 kg parcel of dry air with initial tem- perature…

A: Pressure acting on the air is P = 105 Pa Mass of the air is m = 1 kg Change in volume is dV = 0.75…

Q: Summarize 2nd Law of Thermodynamics in your own word. (1 sentence only)

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Q: (h) Figure Ql.(h) below shows the emission of steam from a kettle causing a pinwheel to turn. Which…

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Q: Explain in broad terms the fundamental concepts of thermodynamics.

A: Thermodynamics is a concept through which we can study the dynamics of a system due to thermal…

Q: True or false? The third law of thermodynamics says that the lowest temperature is -1000 oC.

A: The third law of thermodynamics states that as the temperature of a system approaches absolute zero…

Q: Which of the following is a reversible thermodynamic process? finite temperature change free…

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Q: Explain the zeroth law of thermodynamics?

A: The Zeroth Law of Thermodynamics states that if two bodies are each in thermal equilibrium with some…

Q: Ice melts on a hot day. This is an example of which law of thermodynamics?

A: Molecules in ice are more fixed and ordered than its melted counterpart water in which molecules are…

Q: Summarize 2nd Law of Thermodynamics in 1 sentence only.

A: Explanation of second law of thermodynamics.

Q: According to the First Law of Thermodynamics, is it possible for the temperature of a gas to rise…

A: According to first law of thermodynamics the change in thermal energy of a system is equal to the…

Q: The zeroth law of thermodynamics allows us to define thermal equilibrium Select one: O True O False

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Q: How high would I have to jump to warm up the surface of the Earth upon landing?

A: It is necessary to determine the height from which a person must leap in order to warm the Earth's…

Q: Many people have tried to built perpetual motion machines. What restrictions does the first law of…

A: A device that violates the First law of thermodynamics (by creating energy) is called a Perpetual…

Q: 4 moles of an ideal gas undergoes isothermal expansion along 1) reversible expansion from Pi =25.0…

A: Given data: Number of moles, n=4 Initial pressure, Pi=25 bar Initial volume, Vi=4.50 L Final…

Q: What are the tree statements of the second law of thermodynamics? Write them down briefly.

A: The three statements of the second law of thermodynamics are as follows: 1. Kelvin-planck Statement…

Q: Q25(i) Write any uses of laws of thermodynamics.

A: 1. The first law of thermodynamics defines the conservation of energy and also provides an idea of…

Q: If you put a rock on the ground, sooner or later the rock will have the same temperature as the…

A: Given situation is that, you put rock on the ground, sooner or later the rock will have the same…

Q: 15) The work done by an ideal gas during on full cycle is 400 J. What is the change in internal…

A: For a cycle, the initial and final state of the system is same. Hence change in any property is…

Q: Describe how the evaporator in an air conditioner works in terms of the second la thermodynamics.

A: The evaporator in an air conditioner works based on the principles of the second law of…

Q: 7. How much work is required to compress 5 mol of air at 20°C and 1 atm to one-tenth of the original…

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Q: 18. Combine the 1st and 2nd laws of thermodynamics for a PVT system so as to show that, for any…

A: Answer : We know from first law of Thermodynamics, if dU denotes the change in the internal energy…

Q: 10. Compute the amount of latent heat taken up when 5 kg of liquid water evaporates.

A: Latent Heat Latent heat is defined as the amount of heat required for a state change. This heat does…

Q: P(105 pa) 3 1 10000 V(cm³) 1.2 Mol of nitrogen an ideal diatomic gas is undergoing the process shown…

A: From the given P-V curve we can conclude that it is an isochoric process (V= constant) Given: n=1.2…

Q: A thermodynamic process that occurs so rapidly or occurs in a system that is so well insulated and…

A: Adiabatic process is the process during which there is no transfer of heat from or to the system. A…

Q: he first Law of thermodynamics is applied to an ideal gas that is then taken through an isobaric…

A: Isobaric process:-             If  a system undergoes  a change in which pressure is kept constant,…

Q: Give some examples of the first law of thermodynamics?

A: First law of thermodynamics