What volume (in liters) does the H2 occupy at standard temperature and pressure(STP).

Calculate the pressure on 1.00 lb mol of Nitrogen gas ,N2, contained in a 100 ft^3 container at 70 degree Fahrenheit

A gas at 20°C may be considered rarefied and deviating from the continuum concept. If the gas contains 8.57E+11 molecules per cubic millimeter and the Avogadro's number is 6.023E23 molecules per mole, what absolute pressure (in Pa) for air does this represent? Pa

In the graph below, each unit on the horizontal axis is 1.90 103 m³ and each unit on the vertical axis is 0.200 atm. (a) Determine the change in internal energy of the gas if 2042 J of heat is added as it expands in volume along the direct path CA. 1306 J (b) To get the same change in internal energy, how much heat must be added to the gas as it goes along the path CBA? J just need help for part b B A