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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: alharthi on September 05, 2016, 06:20:38 PM

Title: {change in entropy when solid NaCl melts}
Post by: alharthi on September 05, 2016, 06:20:38 PM

Calculate the change in entropy when solid NaCl melts at its melting point of 800. oC given the enthalpy of fusion for NaCl = 30.2 kJ/mol

plz>>> answer with doing calculation

thank you!

{MOD Edit -- useful title}

Title: Re: {change in entropy when solid NaCl melts}
Post by: Arkcon on September 05, 2016, 07:16:23 PM

alharthi: I want welcome you to The Chemical Forums, but I'd like to ask you to review the Forum Rules{click} (http://www.chemicalforums.com/index.php?topic=65859.0).  You agreed to them when you signed up, and we expect you to follow them.  This is a learning forum, we want to help you help yourself.

You can start by checking your text book or class notes for a pertinent formula.

Title: Re: {change in entropy when solid NaCl melts}
Post by: Vidya on September 11, 2016, 11:35:34 PM

Quote from: alharthi on September 05, 2016, 06:20:38 PM

Calculate the change in entropy when solid NaCl melts at its melting point of 800. oC given the enthalpy of fusion for NaCl = 30.2 kJ/mol

plz>>> answer with doing calculation

thank you!

{MOD Edit -- useful title}

It is very simple ...please check your text book for the relation in entropy ,temperature and enthalpy  and plugged in the values...