Ans 1 : greater than zero
According to the second law of thermodynamics, entropy of the spontaneous process always increases.
There can also be a decrease in entropy of the system but it does not need to be spontaneous necessarily.
anvas D Question 1 2 pts The entropy change in a system (ASpo) during a spontaneous...
2 pts D Question 2 Which of the following statements is a valid definition of entropy? it is a measure of the average kinetic energies of the particles in a system It is a measure of how dispersed the energy of a system is O It is a measure of how the temperature changes during a soontaneous change O It is a measure of the enthalpy changes during a spontaneous change
The change in entropy for the surroundings in a situation where heat flows from a hotter system to a cooler surrounding is: Select the correct answer below: O greater than zero O less than zero O equal to zero O impossible to predict
6) When a spontaneou s, endothermic reaction occurs at constant temperature and pressure, the entropy change of the surroundings is: a) impossible to tell b) positive c) negative d) zero a) ΔG > 0 One finds that the equilibrium constant for a particular reaction increases with increasing temperature. Assuming that the standard reaction enthalpy and entropy are temperature independent, this means that: a) The standard reaction enthalpy is less than zero 8) b) The standard reaction entropy is greater than...
Entropy (S) The second factor involved in determining whether or not a process is spontaneous is the change in randomness or entropy (AS). Entropy is represented by the symbol S. Again, experience can help us understand the relationship between entropy and spontaneous processes. If we look at the two drawings below, we can predict which picture represents the stack of marbles "before" and after they are bumped. We expect the stack of marbles (less random, lower entropy) to be the...
During the adiabatic process, the change in the temperature of the system is A. Greater than zero. B. Less than zero. C. Equal o zero. D. Any of the above. E. It depends on the initial temperature.
Which of the following is NOT associated with an enthalpy change for a transformation? The formation of bonds or inter-particle interactions The breaking of bonds or inter-particle interactions The separation of particles during a transformation NONE of them are NOT associated (.e., they ALL ARE associated) with an enthalpy change QUESTION 2 According to the Second Law of Thermodynamics, which must increase for a reaction to be spontaneous? Gurt Syys Suniverse Sun QUESTION 3 Choose the process that has a...
During the adiabatic process, the change in the temperature of the system is A. Greater than zero. B. Equal to zero. C. Less than zero. D. Any of the above. E It depends on the initial temperature.
True or False (Problems 1 through 10) 1. The change in entropy of a closed system is the same for every process between two specified states 2. The entropy of a fixed amount of an incompressible substance increases in every process for which temperature increases 3. A process that violates the second law of thermodynamics violates the first law of thermodynamics. 4. When a net amount of work is done on a closed system undergoing an internally reversible process, a...
Question 12 When delta G is negative (1 point)* entropy is high and enthalpy low entropy low and enthalpy high when entropy is negative when entropy is zero Question 13 Question 13 When delta G is negative (1 point) * O initial G is high and final G is low initial G is low and final G is high intial G is in equilibrium with final G O none Question 14 When delta G is negative (1 point) * O...
1. Which of the following processes are spontaneous or non-spontaneous? a. 2 H2(g) + O2(g) → 2 H 0(2) b. Recharging a battery without plugging it in. C. Salt dissolving in water d. Freezing a popsicle at room temperature 2. For the following equilibrium constant values, indicate whether the process is spontaneous or nonspontaneous AND whether the value of ArxnGº is greater than less than or equal to zero by circling the appropriate response. Equilibrium Constant Value Is the reaction...