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Chrome File Edit View History Bookmarks People window Help The National Math & Science : × % APChemistryNMSI-AP Chem x " AP Thermo Prob Secure https://calmweb.chem.indiana.edu/FtWorthCountryDayTXHS5/cgi-bin/bm alm puter Assisted Learnine Method 361315912 Tutorial MenuT Trouble Report Message Board Professor Tool Exi Topic S - Thermodynamics Section 2 - Thermodynamics Question 4 The solubility of a substance in water decreases when the temperature is increased. Which of the following conclusions can you draw from this statement? 1.Dissolving the substance in water has a negative change in entropy 2. Dissolving the substance in water has a positive change in entropy 3.Dissolving the substance in water is exothermic 4. Dissolving the substance in water has an entropy change of zero 5. Dissolving the substance in water has an enthalpy change of zero Push mel to continue. Department of Chemistry I College of Arts and Sciences I Chemistry Library I OneStart I Personnel I CALMI Comments Copyright c 2008 .800 E. Kirkwood Ave., Bloomington, IN 47405-71021 Ph: (812) 855-90431Fx: (812) 855-8300 The Trustees of Indiana University i Cguright Complaints ·

Explanation / Answer

Correct option is 3) Dissolving the substance in water is exothermic.

Because as per the Le Chatelier’s principle, extra heat increase due to the increase in temperature will cause the equilibrium for an exothermic process to shift towards the reactants because the reaction proceeds in a way to counter the effect of changes being made to the equilibrium.

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