问题：
[单选题]An alternative model assumes that there is no mixing between the gas originally in VR (R is a subscript) and that of which enters from the bottle. In this case, after pressures are equalized, we could have two identifiable gas slugs which presumably are at different temperatures. Assuming no axial heat transfer between the gas slugs, what is the final temperature of each?
A434.8 K
B1034.0 K
C852.1 K
