An ideal gas at 20C and a pressure of 1.50x10^5 pa is in a container of volume 6.4dm^3 the number of moles of gas in the container is

The gas law for an ideal gas at absolute temperature T (in kelvins), pressure P (in atmospheres), and volume V (in liters) is PV = nRT, where n is the number of moles of the gas and R = 0.0821 is the gas constant. Suppose that, at a certain instant, P = 9.0 atm and is increasing at a rate of 0.15 atm/min and V = 13 L and is decreasing at a rate of 0.17 L/min. Find the rate of change of T with respect to time at that instant if n = 10 mol. (Round your answer to four decimal places.) K/min dT_ dt

The total translational kinetic energy of the molecules of a sample of gas at 415 K is 17500 J. How many moles n does the sample comprise? mol n = Find the average translational kinetic energy Ky of a single molecule. J Kav

Helium has 4 gram/mole mass. There is a helium storage container that has 38 kg of the gas at 273 K and P = 1.013 x 10^5 N/m^2.  R = 8.314 J/mol Volume of He in container is 212 m^3 A. Add another 10 kg of the He gas into container. What is the pressure in atm of container?