STEM6-4Q-W5-GS Practice Questions PDF

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AffluentKremlin

Uploaded by AffluentKremlin

University of Southeastern Philippines

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chemistry practice questions chemical thermodynamics entropy spontaneity

Summary

This document contains practice questions on chemical thermodynamics, focusing on predicting the spontaneity of reactions based on entropy. It includes examples of reactions and questions about entropy.

Full Transcript

Assessment: 1. If 3.54 moles of BrCl3 reacts according to the equation, how many moles of Cl2 will be formed? How many moles of Br2 will be formed? 2 BrCl3 —>3 Cl2 + Br2 Does this reaction occur on their own without outside energy once initiated? Does this reaction oc...

Assessment: 1. If 3.54 moles of BrCl3 reacts according to the equation, how many moles of Cl2 will be formed? How many moles of Br2 will be formed? 2 BrCl3 —>3 Cl2 + Br2 Does this reaction occur on their own without outside energy once initiated? Does this reaction occur on their own without outside energy once initiated? Does this reaction occur on their own without outside energy once initiated? Baking soda reacts with hydrochloric acid Does this reaction occur on their own without outside energy once initiated? Does this reaction occur on their own without outside energy once initiated? Chemical Thermodynamics Rellian S. Colita COMPETENCY predict the spontaneity of a process based on entropy Entropy - the degree of disorder or uncertainty in a system Spontaneous Process a chemical reaction that favors product formation under the given conditions once the reaction has begun. In other words, the reaction is observed as occurring on its own (i.e., without outside energy input) once the reaction is underway. Nonspontaneous Process a chemical reaction that does not take place on its own. It requires the influence of external factors in the form of energy or heat to proceed. Notice the correlation. FA: 1. Which of the following reactions has a decrease in entropy (ΔS

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