Boltzmann’s constant is 1.38066×10^−23 J/K, and the universal gas constant is 8.31451 J/K · mol. If 0.8 mol of a gas is confined to a 6.7 L vessel at a pressure of 10.8 atm. What is the average kinetic energy of a gas molecule?

The space between two 15-in.-long concentric cylinders is filled with glycerin (viscosity = 8.5 × 10-3 lb·s/ft2). the inner cylinder has a radius of 1 in. and the gap width between cylinders is 0.1 in. determine (a) the torque and (b) the power required to rotate the inner cylinder at 180 rev/min. the outer cylinder is fixed. assume the velocity distribution in the gap to be linear.