Create DHCP Scopes for VLANs

Hi

I have a Server 2008 R2 DHCP server with one scope for our 10.165.x.x range. We are going to introduce some VLANs on a 172.16.x.x range and want to create a DHCP scope for this on the same DHCP server as the 10.165.x.x range. If I create the scope now before configuring the VLANs, will computers in the 10.165 range get a 172.16 address?

Thanks in advance

Shane