Question

c) (6 pts) Calculate the molar mass of methane. 10. (10 pts) Terrence finds that all gases exhibit virtually the same behavior in response to temperature and pressure changes, no matter what the gaseous compound's formula mass or shape. The physical properties of gases depend on only four variables: pressure (P), volume (V), Kelvin temperature (T), and number of moles (n). All four variables can be changed simultaneously, but experimenting with only two at a time while keeping the other two constant results in some simple but important mathematical descriptions of gas behavior. Fill the blank in the following table that describes the gas laws. Gas law Constant variables Mathematical Description description Boyle's Temperature (1), law Number of moles (n) V=constant x1 Pressure (P), Number of moles (n) Gay- Lussac's law As the temperature increases, the pressure increases. V- constant xn Equal volumes of gases at the same pressure and temperature contain the same number of molecules.

Answer 1

c) Molar mass of Methane (CH₄) = 12 + 4 * 1 = 16 g / mol

10. A. P * V = constant

As pressure increase, volume decreases

B. Charles' Law

As temperature increases, Volume increases

C. Volume, Number of moles (n)

P = constant * T

D. Dalton's Law

Pressure, Temperature