Temperature and Pressure Sample Gas T (K) P (atm)
N2 300 1.20
02 300 1.20
He 300 1.20
300 1.20
CO2
The table shows the temperature and pressure of five-liter samples of four different gases. Which two gas samples do not have the
same number of molecules?
A)
He and O2
B)
N, and 02
N, and CO2
D)
O, and CO2

How have the greenhouse gasses increased from the year 2000 to 2018

The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms

Lab reagent, hypothesis test.a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl.these six measurements are assumed to be an srs of all possible measurements from solution.they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution.carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.