How are Xenon fluorides `XeF_2`, `XeF_4` and `XeF_6` prepared ?

Explanation

Preparation of `XeF_2`
`Xe(g) + F_2 (g) overset(673 K, 1 "bar")to XeF_2 (g)` (Excess)
Preparation of `XeF_4`
`underset("1 Vol")(Xe(g)) + underset(5 "vol")(2F_2 (g)) overset(873 K , 7"bar")to XeF_4 (g)`
Preparation of `XeF_6`
`underset("1 vol")(Xe(g)) + underset(20 "vol")(3F_2 (g)) overset(573 K, 60-70 "bar")to XeF_6 (g)`
`XeF_6` can also be prepared from `XeF_4`
`XeF_4 + O_2 F_2 to XeF_6 + O_2`