copy the RSS feed URL and save it in a text file. There are many websites that allow you to syndicate RSS feed with your tweets, here I’m going to present you to an app known as IFTTT (If This Then That). Make an account in it (its easy)
The answer to that is sadly no. You should have to relay on third-party apps to use it with twitter
You can schedule when to tweet your new rss content if you link your IFTTT account with Bufferapp.