41. What is the root mean square speed (in m/s) of carbon monoxide at 42.7 o C?

Question

41. What is the root mean square speed (in m/s) of carbon monoxide at 42.7oC?

42. When 8 g of neon is combined in a 100 L container at 80oC with 11.75 g of argon, what is the mole fraction of argon?

44. What is the density (in g/L) of argon at 362 K and under 1.172 atm of pressure?

45. What is the molar mass of a gas which occupies 41.5 L at 86oC under 756 torr of pressure and has a mass of 23 grams?

46. When 1.192 atm of methane reacts with 0.948 atm of oxygen at a constant temperature in a closed rigid container to form carbon dioxide and water vapor, what is the theoretical yield (in atm) of carbon dioxide?

Explanation / Answer

41)

41)

Molar mass of CO,

mm = 28.01 g/mol

= 0.02801 Kg/mol

T= 42.7 oC

= (42.7+273) K

= 315.7 K

vrms = sqrt (3*R*T/M)

here : T is temperature in Kelvin

and M is molar mass in Kg/mol

So,

vrms = sqrt(3*8.314*315.7/0.02801)

= 530. m/s

Answer: 530. m/s

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