Friday
April 18, 2014

Homework Help: Chemistry

Posted by Jason on Thursday, March 29, 2012 at 3:23pm.

The normal melting point of H2O is 273.15 K, and deltaH fusion is 6010 J/mol. Calculate the change in the normal melting point at 175 and 625 bar assuming that the density of the liquid and solid phases remains constant at 997 and 917 kg/m^3 respectively. Explain the sign of your answer.

So I had no problem calculating:
when P= 175 bar, deltaT= -1.25 K
when P= 625 bar, deltaT= -4.48 K

Assuming my answers are correct, can someone explain the negative signs in the context of the question?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

chemistry - arrange these seven substances in order from highest melting point ...
intermolecular forces - arrange these seven substances in order from highest ...
chemistry - Urgent. The melting point of pure acetylsalicylic acid is 135 ...
Organic Chemistry - Melting Point - You have an unknown with an observed melting...
chemistry - intermolecular forces Rank the following substance from highest ...
Chemistry - How much heat is required to vaporize 1.00 L of CCl4 at its normal ...
Chemistry - Some properties of aluminum are summarized in the following list. ...
chemistry - Some properties of aluminum are summarized in the following list. ...
CHEMISTRY - which of the following elements would have the highest melting point...
ochem - You have a mixture composed of 90% benzoic acid and 10% naphthalene. ...

Search
Members