The lowest pressure attainable using the best available vacuum techniques is about 10−12N/m2. At such a pressure, how many molecules are there per cm3 at 14 ∘C?

Q: The average speed (in meters per second) of a gas molecule is as attached. where Tis the temperature…

A: Given, vavg=8RTπM        T = Temperature M = Molar mass R = 8.31

Q: A certain volume of gas at atmospheric pressure is compressed adiabatically to (1/5)th of its…

A: Given

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Q: What is the average mechanical energy of the atoms of an ideal monatomic gas at 300 K?

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Q: The lowest pressure attainable using the best available vacuum techniques is about…

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Q: Question 2. 1.60 x 106 Pa. Find (a) the temperature of the gas and (b) the average kinetie energy of…

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Q: An expensive vacuum system can achieve a pressure as low as 1.00×10 – 7 N/m2 at 20ºC . How many…

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Q: Calculate the total number of degrees of freedom possessed by the molecules in 1cm3 of H2 gas at…

A: Number. of H2 Molecules in 22.4 litres or 22400 cm3 at NTP = 6.02 ×1023.Number. of H2 Molecules in 1…

Q: A type of liquid (density = 1500 kg/m3) passes through an adiabatic nozzle having an inlet diameter…

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Q: A weather balloon is designed to expand to a maximum radius of 17 m at its working altitude, where…

A: The initial pressure is, P1=0.03 atm The final pressure is, P2=1 atm The initial temperature is,…

Q: A scuba diver releases a 3 cm diameter air bubble from a depth of 14.0 m. Assuming the temperature…

A: As per our answering guidelines, we will be answering the first question. Kindly post the second…

Q: If the translational speed of molecules in an ideal gas isdoubled, by what factor does the Kelvin…

A: Translational speed

Q: when the translational speed of molecules in an ideal gas triples, by what factor has ist absolute…

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Q: Use the Maxwell distribution to calculate the average value of v2 for the molecules in an ideal gas.…

A: Maxwell's distribution function for speed is given by where, k= Boltzmann constant. T = absolute…

Q: (II) Show that for a mixture of two gases at the same tem- perature, the ratio of their rms speeds…

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Q: Calculate the rms speed of Br[math]_{2}[/math] molecules at 23 degrees Celsius and 1.00 atm. X 214.9…

A: Root mean square  ( Vrms )  speed of molecules is measured by the molar mass and temperature of the…

Q: A container having a volume of 2.3 m3 holds 9 moles of helium gas at 192°C. If the helium behaves…

A: The average kinetic energy (KE) per particle in an ideal monoatomic gas at temperature T (in Kelvin)…

Q: Suppose a planet has an atmosphere of pure ammonia at 5.5 °C.What is the rms speed of the ammonia…

A: Given, Temperature, T=5.5 °C=278.5 K The molecular weight of ammonia( NH3),  M=17.03…

Q: A helium-filled weather balloon has a 0.90 m radius at liftoff where air pressure is 1.0 atm and the…

A: We use the ideal gas law to solve this question. Ideal gas law is mathematically written as PV =…

Q: imate the average distance between molecules in air at 0.0°C and 3.00 atm. nm

A: let volume is = 1 m3  we know that  PV = nRT

Q: A gas occupying 1 litre at 80cm pressure is expanded adiabatically to 1190cm3. If the pressure falls…

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Q: 8. (II) Show that the rms speed of molecules in a gas is given by vms p is the gas density. 3P/p,…

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Q: What is the average distance between air molecules at standard temperature and pressure (0°C and 1…

A: Answer If you assume air is an ideal gas then one mole occupies  V= nRT/P The density if air is very…

Q: Calculate the temperature at which rms speed of gas molecules is double of its speed at 27 degree C,…

A: The expression for the rms value of the velocity is

Q: What happens to the volume of an ideal gas if the pressure is reduced to 90.0% of its initial…

A: Write the ideal gas equation. Here, P represents the pressure, V represents the volume, n…

Q: What macroscopic property of an ideal gas doubles when the absolute temperature is doubled while…

A: The relation connecting the pressure , temperature and volume of the ideal gas is given by,

Q: How much work is done by 3.00 mol of ideal gas when it triples its volume at a constant temperature…

A: Number of moles (n) = 3 moles Let the initial volume = V Let the final volume = 3V Constant…

Q: a 1 kg spherical weather balloon with diatomic hydrogen (H2) rises adiabatically from 1000 hPa to 1…

A: For adiabatic processes, the relation between initial and final pressure is given as, P1V1γ=P2V2γ…

Q: Why wouldn't you expect all the molecules in a gas to have the same speed?

A: Gas molecules move with random speeds.

Q: A gas is at 27 degrees celsius. To what temperature must it be raised to triple the rms speed of its…

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Q: Estimate the average distance between molecules in air at 0.0°C and 2.80 atm.

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Q: What is the average translational kinetic energy of molecules in an ideal gas at 50 °C?

A: Given that, Temperature = 50°C

Q: In an interstellar gas cloud at 50.0 K, the pressure is 1.00 * 10-8 Pa. Assuming that the molecular…

A: The molecular diameter of the gases,

Q: The limiting value of the ratio of pressures of a gas at the steam point and at the triple point of…

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Q: Modern vacuum pumps make it easy to attain pressures of the order of 10-13 atm in the laboratory.…

A: Given data *The given pressure is P=9.00×10-14 atm=9.00×10-14×1.01325×105 N/m2 *The given…

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.