Assume molecules have an average diameter of 1.20 x m. How many times larger is the mean free path than the diameter at STP? (Assume the pressure is 1.01 x 10 5 N/m 2 and the temperature is 20°C. 0°C = K) Select the correct answer

A box contains about 10.0 x hydrogen atoms at room temperature (21°C). Determine the thermal energy of these atoms. (R = 8.315J/mol·K. 0°C = K) Select the correct answer J 2.6.6J 3.5.8J 4.68J 5.64J

When we consider a thin horizontal layer of the atmosphere, of thickness dy, of area A, with pressure P on the bottom, with an average mass m per molecule, and n V molecules per unit volume, the magnitude of the difference of the pressure at the top and bottom of the layer is given by dP = _____. Select the correct answer mgndy 2.mgn V dy 3.mgAdy 4.mgn V Ady 5.mgn V APdy

A container having a volume of 1.2 m 3 holds 2.0 moles of helium gas at 80°C. If the helium behaves like an ideal gas, the average kinetic energy per molecule is _____. (k B =1.38 x J/K. 0°C = K) Select the correct answer x J x J x J x J x J

Assume 4.0 moles of a diatomic gas has an internal energy of 20 kJ. Determine the temperature of the gas after it has reached equilibrium. (R = 8.315J/mol·K) Select the correct answer K K 3.30 K K K

The internal energy of n moles of an ideal gas depends on _____. Select the correct answer one state variable T 2.two state variables T and V 3.two state variables T and P 4.three state variables T, P and V 5.four variables R, T, P and V