Jump to content

Help me with chemistry (thermodynamics)!

dragono
in Homework Help

Featured Replies

I really need help on accelerated chemistry (11th grade).

The question is:

What is the final temperature of water if the initial temperature is 280k and it's heat content is 350.00 kJ and 36,000 Nm of work is performed on it by compression?

 

I have no clue how to do it and any help would be greatly apperciated!

dragono,

 

you'll need the first law of thermodynamics. U = Q-W

 

The change in internal energy in a system is the heat ADDED to the system minus the work done BY the system.

 

You'll also need to know the specific heat capacity of water and the formula:

 

Q = m * c * T

 

It will also help you to know that a Newton-meter is a force applied over a distance... which is WORK... (aka Energy). A newton meter is a Joule.

 

See what you can do with that much info

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.

Configure browser push notifications
Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.