Question 39 2.2 po Select the situation in which a process is spontaneous. AS sys and...
T L - Fall19 - SMEUREANU > Activities and Due Dates Resources Check Answer Hint C Give Up? Assignment Score: 200/300 Attempt 14 Question 3 of 3 > Select the statements below that are correct. If a chemical reaction is spontaneous, then the ASsys must always be positive and greater than AS Jurr If a chemical reaction is spontaneous and the AS gys is negative, then the AS surr must be positive, and so the reaction must be endothermic. If...
Question 7 Not yet answered Marked out of 10.00 P Flag question Which of the following represents a spontaneous system? Select one or more: - A. AS sys=-39 J/K/mol, ASgurr --30 J/K/mol * B. AS sys=12 J/K/mol, AS surr=-19 J/K/mol • C. AS sys=-22.2 J/K/mol, AS surr=39.3 J/K/mol DAS 24 J/K/mol, AS - -32 J/K/mol
Under which of the following conditions is a process spontaneous at high temperatures and nonspontaneous at low temperatures? Select the correct answer below: O AH and AS are both positive O AH and AS are both negative O ΔH is positive and Δ.S is negative O AH is negative and AS is positive
Describe spontaneous and nonspontaneous processes Question Which process is spontaneous? Select the correct answer below: the radioactive decay of Tc-99 the radioactive decay of U-238 O the radioactive decay of C-14 all of the above Content attribution
QUESTION 19 Which of the following acids should be used to prepare a buffer with a pH of 5.9? HOCH2COOH, Ka = 3.5 x 10-4 CICH2COOH, Ka = 1.4 x 10-3 HBrO, Ka = 2.3 x 10-9 C6H13NO4S, Kg = 7.08 x 10-7 HCIO2, Ka = 1.1 x 10-2 QUESTION 20 For the following reaction, N2 (9) + 1/2O2 (g) → N20 (9) At 298 K, AS surr = - 275.34 J/K and ASsys = -74.3 J/K. Which of the...
Select all of the answers below that would lead to a spontaneous process. Group of answer choices a negative change in the entropy of the universe a positive change in the entropy of the universe a positive change in the entropy of the system with a magnitude that is smaller than a negative change in the entropy of the surroundings a positive change in the entropy of the system with a magnitude that is greater than a negative change in...
For a spontaneous process, which of the following MUST be true? (select all that apply) Select all that apply: TΔS>ΔH ΔG>0 ΔSuniv>0 ΔSsys>ΔSsurr
For a spontaneous process, which of the following MUST be true? (select all that apply) Select all that apply: Ο ΤΔ.S > ΔΗ AG > 0 AS univ> Asys > ASSU
Question 12 1 pts Consider the process represented in the diagram. Which statement(s) is/are TRUE? Select all. O A His positive, AS is positive O AH is negative, AS is negative O AHis negative, AS is positive A His positive, AS is negative O AG is negative at all temperatures. AG is negative at high temperatures. O AG is negative at low temperatures. O AG is positive at all temperatures.
Partial 0.44/0.5pts Question 1 Is each statement true or false? 1. false All spontaneous reactions occur quickly. 2. true The reverse of a spontaneous reaction is nonspontaneous. 3. false All spontaneous processes release heat. 4. true The boiling of water at 100°C and 1 atm is spontaneous. 5. false If a process increases the freedom of motion of the particles of a system, the entropy of the system decreases. 6. false The energy of the universe is constant; the entropy...