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Q: Calculate the mass of a solid gold rectangular bar that has dimensions lwh = 5.30 cm ✕ 13.0 cm ✕…
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A: The given conversion factors are as follows.
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- What is the root mean square velocity, vrms, for Helium atom (He) at 22oC? Hint: How many amu does an He atom contain? 1 amu = 1.67 x 10-27 kg Boltzman's Constant, k = 1.38 x 10-23 J/K Give your answer in m/s to 4 significant figures (NO DECIMALS)In a student experiment, a constant-volume gas thermometer is calibrated in liquid nitrogen (−196°C) and in boiling methyl alcohol (64.7°C). The separate pressures are 0.344 atm and 1.556 atm. Hint: Use the linear relationship P = A + BT, where A and B are constants. (a) What value of absolute zero does the calibration yield?? °C(b) What pressure would be found at the freezing point of water? ?atm(c) What pressure would be found at the boiling point of water? ?atmAt what frequency do molecules (diameter 290 pm) collide in (an ideal) oxygen gas (O2) at temperature 400 K and pressure 2.00 atm?
- Much of the gas near the Sun is hydrogen nuclei. Its temperature would have to be 1.5 × 107 K for the rms speed to equal the escape speed from the Sun. a. What is that velocity, in meters per second?The escape speed from the Earth is 1.12 x 104 m/s so thata gas molecule traveling away from Earth near the outerboundary of the Earth’s atmosphere would, at this speed,be able to escape from the Earth’s gravitational field and belost to the atmosphere. At what temperature is the rmsspeed of (a) oxygen molecules, and (b) helium atomsequal to 1.12 x104 m/s (c) Can you explain why ouratmosphere contains oxygen but not helium?For hydrogen gas. H2, tables give values for the parameters of eqn 7a of a= 2728J K-1 mol-1, b=3.26 x 10-3 J K-2 mol-1, and c = 0.50 J K2 mol-1. Calculate the value of the constantpressure heat capacity of hydrogen at 25 °c.
- What is the root-mean-square speed, in units of m/sec, of monatomic Ne atoms at a temperature of 24.1°C?In the hot gases of an automotive engine's cylinders, temperatures may exceed 3100 k. What would be the "root mean square" or "rms" velocity of a hydrogen atom, if one happened to be in that gas after some chemical reaction? The mass of a hydrogen atom is about 1.66x10-27 kg. Give your answer in m/s, but enter only the number.An argon-40 atom has a mass of 6.64 ✕ 10−26 kg. (a) What temperature (in K) would a gas composed entirely of argon-40 atoms have to be at in order for the rms speed of the atoms to equal the escape speed from Earth, 1.12 ✕ 104 m/s? (b) What temperature (in K) would a gas composed entirely of argon-40 atoms have to be at in order for the rms speed of the atoms to equal the escape speed from the Moon, 2.37 ✕ 103 m/s?
- The temperature inside a supernova explosion is said to be 2.00×1013 K . (a) What would the average velocity vrms of hydrogen atoms be?(b) What is unreasonable about this velocity? (c) Which premise or assumption is responsible?Real gases For helium gas, the critical temperature is Tk=5.2K and the critical pressure is Pk=0.23x10^6 Pa. Assuming that the helium gas obeys the Van der Waals equation, calculate the Van der Waals constants a and b, and the density of helium in the critical state.From #2, the initial temperature of the gas is 10C but it rises to 30C after some time: Find the ff: A. initial and final temperatures in °F,?,????.B. the change in temperature in °C,°F,?,????