Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here


Heat of Dilution

Heat of Dilution

Heat of Dilution

I am looking to increase the concentration of 79% w/w sulphuric acid by mixing it with 96% w/w sulphuric acid.

The dilution of 96% to 90% sulphuric acid is exothermic, however am I right in thinking that the increase of concentration of the 79% to 90% sulphuric is endothermic. Will this absorb the heat from the exothermic dilution causing an overall endothermic mixing?


RE: Heat of Dilution

Fig 2-30 in Chapter 2 of Perry Chem Engg Handbook 7th edition shows the enthalpy graph for H2SO4. Using the lever rule, you may figure out what the temp and enthalpy of the mix solution will be.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close