Which is true for a nonspontaneous process? If a subscript is not given, assume it refers...

Question

Question

Which is true for a nonspontaneous process? If a subscript is not given, assume it refers to the system. Select the correct answer below:

ΔS<0

ΔSuniv>0

ΔG>0

ΔG<0

Answer 1

Answer #1

Gibbs free energy and the spontaneity: Based on the value of AG, the process is said to be spontaneous or not. If AG > 0, the

Answer 2

Similar Homework Help Questions

For a spontaneous process, which of the following MUST be true? (select all that apply) Select...

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
A process at constant T and P can be described as spontaneous if ΔG < 0...

A process at constant T and P can be described as spontaneous if ΔG < 0 and nonspontaneous if ΔG > 0. Over what range of temperatures is the following process spontaneous? Assume that gases are at a pressure of 1 atm. (Hint: Use the data below to calculate ΔH and ΔS [assumed independent of temperature and equal to ΔH° and ΔS°, respectively] and then use the definition of ΔG.) PCl3(g) + Cl2(g) → PCl5(g) ΔHf° (kJ mol-1) -287.0 -374.9...
A process at constant T and P can be described as spontaneous if ΔG < 0...

A process at constant T and P can be described as spontaneous if ΔG < 0 and nonspontaneous if ΔG > 0. Over what range of temperatures is the following process spontaneous? Assume that gases are at a pressure of 1 atm. (Hint: Use the data below to calculate ΔH and ΔS [assumed independent of temperature and equal to ΔH° and ΔS°, respectively] and then use the definition of ΔG.) 3 PbO2(s) → Pb3O4(s) + O2(g) ΔHf° (kJ mol-1) -277.0...

22. Which of the following is true for the following process that is nonspontaneous at a...

22. Which of the following is true for the following process that is nonspontaneous at a certain temperature when starting with standard state conditions? N204(0)-2NO2(g) A. AS0 = 0 and A1° = 0 B. AS° <0, so therefore AH 0 C. AS <0, so therefore AH > 0 D. AS > 0, so therefore AH° > 0 E. AS > 0, so therefore AHP <0
Under which of the following conditions is a process spontaneous at high temperatures and nonspontaneous at...

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...

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

Which of the following statements must be true for a spontaneous process? Choose all that apply:...

Which of the following statements must be true for a spontaneous process? Choose all that apply: ΔGsys < 0 ΔSuniv > 0 ΔSsys > 0 ΔHsys - TΔSsys < 0 ΔHsys < 0
The Haber process for the production of ammonia involves the equilibrium N2(g) + 3 H2(g) ⇌...

The Haber process for the production of ammonia involves the equilibrium N2(g) + 3 H2(g) ⇌ 2 NH3(g) Assume that Δ H° = -92.38 kJ and ΔS° = -198.3 J/K for this reaction do not change with temperature. a. Without doing calculations, predict the direction in which ΔG° for the reaction changes with increasing temperature. Explain your prediction. b. Calculate ΔG° at 25 °C and 500 °C. c. At what temperature does the Haber ammonia process become nonspontaneous? d. Calculate...
For a spontaneous redox reaction under a given set of conditions, which of these must be...

For a spontaneous redox reaction under a given set of conditions, which of these must be true? Select all correct choices. ΔG∘=0 ΔG>0 ΔG<0 E∘cell>0 ΔG∘>0 E∘cell<0 Ecell<0 Ecell=0 ΔG=0 E∘cell=0 ΔG∘<0 Ecell>0

At constant pressure and temperature, which statement is true? All reactions for which ΔS < 0...

At constant pressure and temperature, which statement is true? All reactions for which ΔS < 0 are spontaneous. All reactions for which K < 1 are spontaneous. All reactions for which ΔG < 0 are spontaneous. All reactions for which ΔH < 0 are spontaneous.