Q7: The air at a pressure of 100kpa and temperature of 300 K is compressed polytropically until the pressure and temperature become 1500kpa and 500k respectively. Evaluate the polytropic index.
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A: Step 1:Step 2:Step 3:So, the energy stored in the capacitor is 11.21 μJ
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Q: E c) For a radio-nuclide, a number No of atoms at time t = 0 decays as N(t) = No e¯‹, where A is the…
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- (a) Hydrogen molecules (molar mass is equal to 2.016 g/mol) have vrms equal to 193 m/s. What is the temperature? (b) Much of the gas near the Sun is atomic hydrogen (H rather than H2). Its temperature would have to be 1.5107 K for the speed vrms to equal the escape velocity from the Sun. What is that velocity?Q7: Hydrogen gas filled balloons are used for survey of weather at higher altitudes. Such hydrogenballoon at Earth’s surface has a volume of 5000 mm3 on a day when the temperature is 27 ° C and the pressure is 1MPa. The balloon rises and expands as the pressure drops. What would the volume of thesame number of moles of hydrogen be at an altitude of 40 km where the pressure is 0.33 MPa and thetemperature is −13 ° C? If we travel from ground to sky, atmospheric pressure changes? Assess it andjustify your result.At sufficiently high temperatures, the thermal speeds ofgas molecules may be high enough that collisions may ionize amolecule (that is, remove an outer electron). An ionized gas inwhich each molecule has lost an electron is called a “plasma.”Determine approximately the temperature at which air becomesa plasma.
- Hi I need help with this question: The Goodyear blimp we usually see hovering above our heads at a football game contains 5200 m3 of helium gas. If there are 1090 kg of gas at an absolute pressure of 1.10 105 Pa in the blimp, what is the temperature of the gas? The atomic mass of helium 4.00260 g/mol.A diver 60 mm deep in 10∘C∘C fresh water exhales a 1.5 cmcm diameter bubble. What is the bubble's diameter just as it reaches the surface of the lake, where the water temperature is 20∘C∘C? Assume that the air bubble is always in thermal equilibrium with the surrounding water. Express your answer in centimeters.1. Average atomic and molecular speeds (vrms) are large, even at low temperatures. What is vrms (in m/s) for helium atoms at 6.00 K, just two degrees above helium's liquefaction temperature? 2. The escape velocity from the Moon is much smaller than from Earth and is only 2.38 km/s. At what temperature (in K) would hydrogen molecules (molar mass is equal to 2.016 g/mol) have an average velocity vrms equal to the Moon's escape velocity? 3.Hydrogen molecules (molar mass is equal to 2.016 g/mol) have an average velocity vrms equal to 239 m/s. What is the temperature (in K)?
- Q7. A family leaves for summer vacation by driving on the highway. The car tires start the trip with a pressure of 2.5 atm at a temperature of 20 0 C and a volume of 2.1 L. Suggest the preferable pressure of the tire if the volume decreased to 1.4 L after driving, if the temperature of tire gas increases to 1080 C.After some time, he stops the car and put some water in the car radiator since it gets heated. Analyze andJustify your answer for usage of water in radiator to cool the system.1. An expensive vacuum system can achieve a pressure as low as 1 x 10-7N/m² at 20 °C. How many atoms are there in a cubic centimeter at this pressure and temperature? The Boltzman's constant k= 1.38 x 10 m²kg/(s²K) -23 Number of atoms:What will be the temperature of the skin so as to radiate 0.08 w/cm2 knowing that Stefan constant= 5.7x10-12 w/cm?.k*. 306.1 k° 344.2 k° 380 k°
- 1. Thermal equilibration in a two-level atomic system: purely radiative case. Suppose a collection of two-level atoms has a specified radiative decay rate Yrad, = and no nonradiative decay, Ynr 0. The atoms are pre-cooled to absolute zero for long enough to come into equilibrium with №₂ 0, and then are suddenly moved at t = 0 into an enclosure with walls held at a finite temperature Trad. Find formulas for the populations N₁(t) and N₂(t), and for the temperature Ta(t) of the collection of atoms for t > 0. =here?2. Air molecules (average molar mass 29 g mole) have atemperature of 300 K. What is the ratio of the number ofmolecules with an x- component of velocity vx = 200 m sto thenumber with vx = 100 m sThe temperature of the diatomic hydrogen gas sample is increased to 100 degrees Celsius. The root mean square speed vrms for diatomic hydrogen at 100 degrees Celsius is: A. 4000 m/s B. 2800 m/s C. 2000 m/s D. 1400 m/s E. 1000 m/s F. None of the above