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Q: Cite an exception to claim that all substances expand when heated.
A: Generally, when materials are heated, the kinetic energy of the material increases and the atoms and…
Q: Show that the ideal efficiency is 90% for an engine in which fuel is heated to 3000K and the…
A: Given:Temperature of the fuel = 3000KTemperature of the surroundings = 300 KEfficiency = 90%
Q: 10000 1000- co, solid 100 co, liqud Sublim aton point -785°C at 1 atm 10- 0.1- 001- co, gas 0001…
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Q: Numerical :- let E what factor does 2 (E) increase by only 10°E. By changes ?
A: The change in when E increases by can be calculated as follows:We know that so we can substitute…
Q: A 60-kg person proposed to drink a 900-kilocalorie brown-sugar milk tea with pearls and pudding, and…
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Q: How does mean free path vary with temperature and pressure?
A: The expression for the mean free path can be written as: λ=KBT42πr2p .................. (1) Here, KB…
Q: Explain, neutral temperature of a thermocouple with examples.
A: Answer given below:
Q: Find all the macroscofic and microscopic States of the System inthe adjacent fiqure Microscofic…
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Q: what happens to internal energy of sytem when mechanical work is done on it? what happens to its…
A: When mechanical work is done on the system internal energy of the system increases.Temperature of…
Q: how the pressure, temperature, and volume of a gas relate to one another, consider what happens when…
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Q: How does the latent heat of fusion of water help slow the decrease of air temperatures, perhaps…
A: The latent heat of water below zero degree Celsius (ice) is 334 J/g. the amount of latent heat of…
Q: Can a rooom be cooled by keeping the door of refrigerator open?
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Q: When an air molecue is hit by an approaching faster moving molecule, does its rebound speed increase…
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Q: 30° B
A: Given: At rest, the angle between the rod and the frame = 00 After release, the angle between the…
Q: 3-89 Saturated water vapor at 350°C is heated at constant pressure until its volume has doubled.…
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Q: When an air molecule is hit by an approaching faster-moving molecule, does its rebound speed…
A: Given: an air molecule is hit by an approaching fast moving molecule
Q: Do you defog your windows with cold or hot air?
A: Yes, with the hot air preferably dry and hot air.
Q: ideal gas starting tenperature at 850 k ander constant pressure cx pansion P= 2.00 k Pa if the…
A: Given : T=350 K P=2 kPa V1=3 m3 V2=6 m3 Q=13 kJ
Q: uhat happens Accoraing to the Kinetic theoy to gaseeus moacuoswhen the temperatuve of a gas…
A: Given:- According to kinetic theory kinetic energy of gaseous molecule is directly…
Q: Explain why a firewalk er can step quickly without harm on red hot coals with bare feet.
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Q: • Failure: along grain boundaries. g.b. cavities Time to rupture, tr ● applied Stress ● Estimate…
A: Given, S-590 Iron Applied Stress = 20 ksi = 20000 psi At stress, σ = 20000 psi Larson-Miller…
Q: Discuss the result when a thermos flask containing tea is vigourously shaken.
A: A thermos flask is an insulating storage object that does not transfer heat through it.From the…
Q: (5) At what temperature are the reading from a Fabrenheit thermometer and Celsius thermometer the…
A: Given, Value of Fahrenheit thermometer and Celsius thermometer temperatures are same F = C
Q: True or false "Substances cannot change phase without high temperatures and low pressure."
A: Phase changes don’t require high temperature and low pressure necessarily. If the temperature is…
Q: Which temperature scale has no negative temperatures?
A: Temperature scales are used to measure degree of hotness or coldness of a body. There are different…
Q: At the triple point, pressure vary and temperature . vary cannot, cannot cannot, can can, cannot…
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Q: Do adiabatic processes apply only to gases? Defend your answer.
A: Adiabatic processes do not apply only to gases.
Q: how could i calculate a change in temprature of a rain drop only given the velocity at which it…
A: This problem is basically based on the conservation of energy.Given the velocity, v at which it…
Q: Question 3 As the temperature of a closed system approaches absolute zero, O the energy of the…
A: At absolute zero i.e. at -273.15°C There is no energy due to motion of the molecule, we can say…
Q: Specific heat of ideal gas depend on its?
A: specific heat : it is amount of heat required for a unit mass of body to raise the temperature by 1…
Q: The reason for the preference of pilots to take off from the highest air port in the morning or the…
A: The two key factors that have a significant impact on an airplane's performance, particularly…
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