%3Cp%3E1)%20Write%20the%20Ideal%20Gas%20Equation%20and%20give%20the%20units%20fo
ID: 828556 • Letter: #
Question
%3Cp%3E1)%20Write%20the%20Ideal%20Gas%20Equation%20and%20give%20the%20units%20for%20each%0Avariable%20when%20R%3D0.08206%20L%20atm%2Fmol%20K.%3Cbr%20%2F%3E%3C%2Fp%3E%0A%3Cp%3E%3Cbr%20%2F%3E%3C%2Fp%3E%0A%3Cp%3E%3Cbr%20%2F%3E%3C%2Fp%3E%0A%3Cp%3E2)%20Calculate%20the%20density%20of%20nitrogen%20gas%20at%20STP.%3C%2Fp%3E%0A%3Cp%3Ea)%20using%20the%20ideal%20gas%20equation%3C%2Fp%3E%0A%3Cp%3E%3Cbr%20%2F%3E%3C%2Fp%3E%0A%3Cp%3Eb)%20using%20the%20molar%20volume%20and%20molar%20mass%3C%2Fp%3E%0A%3Cp%3E%3Cbr%20%2F%3E%3C%2Fp%3E%0A%3Cp%3E3)%20Methane%20burns%20in%20oxygen%20to%20produce%20carbon%20dioxide%20and%20water.%0AIf%203.75%20L%20of%20gaseous%20CH4%20is%20burned%20in%20an%20open%20container%20at%20STP%2C%0Awhat%20volume%20of%20oxygen%20is%20required%20for%20complete%20combustion%3F%20What%0Avolume%20of%20carbon%20dioxide%20will%20be%20prdouced%3F%3Cbr%20%2F%3E%3C%2Fp%3E%0AExplanation / Answer
1)
PV =nRT
P = atm
V = lt
T = kelvin
n = no.of moles
2)
a) d = P*molwt/RT
d = 1*28/0.0821*298
= 1.14 gm /lt
b) d = M/vol
vol = 22.4 lt
molar mass = 28 gm /mol
d = 28/22.4 = 1.25 gm/lt
3)CH4 +2O2 .........>CO2 +2 H2O
for 22.4 lt of CH4 is required 2*22.4 lt Of O2
3.75 lt of CH4 required ...................?
= 7.5 lt of O2 is required
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