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CHE 114-01 Homework 2 Understanding Standard Entropy of Reaction previous 10 of 10 retum to assignm Understanding Standard Entropy of Reaction Part A Molecular systems tend to move spontaneously to Predict the sign of the entropy change, AS for each of the reaction displayed. a state of maximum randomness or disorder. The measure of the number of energenically equivalent Drag the appropriate items to their respective bins. states is called entropy and is denoted by the symbol S. As a state function, entropy change, AS Reset) (Help) depends only on initial and final states. AS has a positive value when disorder increases and a negative value when disorder decreases. The following conditions usually result in an increase in Pb2+(aq) 2C (aq)-PbCl2(s) 2Nacios (s) 2Naci(s) +302 (g) entropy: a change of phase: solid-liquid-gas an increase in the number of gas ChHs (g) 502 (g)-+3Coh (g) 4 molecules, or a solid dissolving to form a solution. Although the sign of the entropy change can be predicted as described above, the actual value of Negative AS must be calculated from the absolute entropy values, Sa, of the reactants and products: s (products) S (reactants) Submit Hints My Answers Give Up Review Part
CHE 114-01 Homework 2 Understanding Standard Entropy of Reaction previous 10 of 10 retum to assignm Understanding Standard Entropy of Reaction Part A Molecular systems tend to move spontaneously to Predict the sign of the entropy change, AS for each of the reaction displayed. a state of maximum randomness or disorder. The measure of the number of energenically equivalent Drag the appropriate items to their respective bins. states is called entropy and is denoted by the symbol S. As a state function, entropy change, AS Reset) (Help) depends only on initial and final states. AS has a positive value when disorder increases and a negative value when disorder decreases. The following conditions usually result in an increase in Pb2+(aq) 2C (aq)-PbCl2(s) 2Nacios (s) 2Naci(s) +302 (g) entropy: a change of phase: solid-liquid-gas an increase in the number of gas ChHs (g) 502 (g)-+3Coh (g) 4 molecules, or a solid dissolving to form a solution. Although the sign of the entropy change can be predicted as described above, the actual value of Negative AS must be calculated from the absolute entropy values, Sa, of the reactants and products: s (products) S (reactants) Submit Hints My Answers Give Up Review Part
Sixta KovacekLv2
2 Jan 2019