Question

At constant temperature and pressure, 5.0 L of SO2 is

combined with 3.0 L of O2 according to the equation:
2 SO2(g) + O2(g)  2 SO3(g)
After SO3 formation is complete, what is the volume of
the mixture?
(A) 5.5 L (B) 6.0 L (C) 6

Answer 1

I've done this a few times and keep coming up with 5.0 L . I used the mole ratio, and SO 2 as the LR. That would make 2 moles of SO3 5.0 L but its not one of your choices. the temp and pressure are constant, so according to n/v = p/rt the volume is the same as the moles. hope this helps