When a sample of oxygen gas in a rigid closed container of constant volume is heated until its ...?
a) the density of the gas
b) the pressure of the gas
c) the average velocity of the gas molecules
d) the number of molecules per cubic cm
e) the potential energy of the molecules
Answer:
The ideal gas equation is
PV = nRT
so if V (the volume) is constant and n (the number of moles) is constant and R (the gas constant) is constant, when you double T (the absolute temperature) you must also double P (the pressure)
Should be B) pressure
Using the universal gas equation:
PV=nRT
V, n and R stay constant in your questions, so doubling T doubles P
The answer is b)
Gay Lussac's Law.
b)...The Pressure will be doubled.
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