00:01
It is found that at 25 26 degrees celsius temperature temperature 26 degrees celsius and atmospheric pressure which is in atm 1 .16 atmospheric and the volume is which is we 2 .62 .64 liter of a.
00:39
Gas has a mass am is 4 .24 in gram form so its molar mass will be so in this question we have to find the molar mass this question is based on mcqs now first we convert temperature into the celsius into kelvin form we have in kelvin 299 kelvin passion in atmospheric volume is later form mass is in grams.
01:23
Okay, now we use the general gas equation, which is, which is pb is equals to general gas, general gas equation.
01:43
Pv is equals to nrt, where n is equals to, and basically the number of moles, which is equals to the mass of gas, mass of gas, divided by the molar mass of a gas.
02:04
Molar mass of a gas okay simply put n is equal to m over capital m here pb is equals to smaller r t divided by so we have to find the molar mass so m is into left side so the equations final equations comes out m r t divided by the product of pressure and the volume.
02:51
Now simply substitute all the values in this equation.
02:57
So m mass is 4 .2, 4 gram, multiply, r, which is a universal gas constant, the value is 0 .08205, atm, a liter per kelvin, per mole...