The molecular mass of helium is 4 g/mol, the Boltzmann’s constant is 1.38066 × 10−23 J/K, the universal gas constant is 8.31451 J/K · mol, and Avogadro’s number is 6.02214 × 1023 1/mol. Given: 1 atm = 101300 Pa. How many atoms of helium gas are required to fill a balloon to diameter 26 cm at 14◦C and 1.696 atm? What is the average kinetic energy of each helium atom? Answer in units of J. What is the RMS speed of each helium atom? Answer in units of m/s.
The molecular mass of helium is 4 g/mol, the Boltzmann’s constant is 1.38066 × 10−23 J/K,...
#11-12
milk and Ar 4. A 010 (part 1 of 3) 10.0 points The molecular mass of helium is 4 g/mol, the Boltzmann's constant is 1.38066× How 10-23 J/K, the universal gas constant is ice c 8.31451 J/K mol, and Avogadro's number The s is 6.02214 x 1023 1/mol. Given: 1 atmspeci 101300 Pa. speci How many atoms of helium gas are required to fill a balloon to diameter 27 cm at 24 C and of va 1.879 atm? heat...
Boltzmann’s constant is 1.38066 × 10−23 J/K, Avogadro’s number is 6.02214 × 1023 mol−1. Use the mass of Hydrogen molecules per mole to be mH2 = 2 g/mol. Calculate the rms speed of an H2 molecule at 208◦C. Answer in units of m/s.
A tank of volume 0.438 m3 contains 1.35 mol of helium gas at 52 ◦C. Assume that the helium behaves like as an ideal gas. The universal gas constant is 8.31451 J/K mol, and Boltzmann’s constant is 1.38066 × 10−23 J/K. What is the average kinetic energy per molecule? Answer in units of J
13.9 mol of helium is confined to a 19 L vessel at a pressure of 7 atm. Boltzmann’s constant is 1.38 × 10−23 J/K, and the universal gas constant is 8.31 J/K. Find the average kinetic energy of a helium molecule of mass 5.34 × 10−26 kg. Answer in units of J.
030 10.0 points Boltzmann's constant is 1.38066 x 1023 J/K, and the universal gas constant is
Fun with a helium balloon A loosely filled balloon contains 4.5 liters of helium gas at atmospheric pressure (PA = 101 kPa) and room temperature T = 20 C. The gas in the balloon is then heated to body temperature, 37 C, by a student. (a) The pressure inside the balloon changes very little during the heating process. What is the change in the volume of the balloon? (b) How much work does the expanding balloon do on its environment?...
003 10.0 points A sample of helium behaves as an ideal gas as it is heated at constant pressure from 253 K to 378 K If 60 J of work is done by the gas dur- ing this process, what is the mass of the he- lium sample? The universal gas constant is 8.31451 J/mol - K Answer in units of g.
Questiorn 2 mol of oxygen gas is confined to a 4 I vessel at a pressure of 13 atm. Avogadro's number is 6.02214 x 1023 1/mol The mass of an O2 molecule is 5.31 × 10-20 kg Find the average translational kinetic en ergy of an oxygen molecule under these con ditions. Answer in units of J. Your response...
A helium-filled balloon at 305.0 K and 1 atm, contains 0.35 g He, and has a volume of 1.31 L. It is placed in a freezer (T = 240.0 K), and its volume decreases to 0.90 L. Find ΔE for the gas (in joules). (Cp of He = 20.8 J/mol K.)
A sample of helium behaves as an ideal gas as energy is added by heat at constant pressure from 273 K to 343 K. If 15.0 J of work is done by the gas during this process, what is the mass of helium present? 10064 1× g
A sample of helium behaves as an ideal gas as energy is added by heat at constant pressure from 273 K to 343 K. If 15.0 J of work is done by the...