How to auto direct to my web application in Apache http server?

I have my web application hosted on apache server. When I hit my url i.e my ip address - xxx.xx.xxx.12 apache's web page pops up. So my app url is - xxx.xx.xxx.12/mywebapp.

Now what I did is I have mapped DNS to my ip xxx.xx.xxx.12.

so when ever I hit my new url "abc.com" . My apache home page is shown.

But I want when I hit this url, my web application should come up. That mean when I hit my url /mywebapp should automatically append to my url.

Where I do this setting in my apache server. How do I set its context ?