Under what condition is a reaction with a negative AH and a positive AS spontaneous?

Q: 2Al(s) + 3C12(g) -> 2AICI3(s) The above reaction is not spontaneous under standard conditions, but…

A: Answer

Q: At constant pressure, the following reaction is exothermic. 3H2(g) + N2(g) + NH3(g) Reaction (as…

A: According to the second law of thermodynamics, the spontaneous nature of the reaction is determined…

Q: For the following reaction at 25°C: N2H4 () + 302 (g) → 2NO2 (g) + 2 H20 () Calculate AHO Calculate…

A:

Q: Which one of the following reactions is spontaneous at all temperatures? (hint: determine AS by…

A: Spontaneous reaction is the reaction which can occur naturally.  For these reactions, change in…

Q: What do we know is true if a reaction is only spontaneous below 90 °C? A. AS and AH are both…

A: For a reaction to be spontaneous, delta G = negative.  Delta G is given by  Delta G = delta H -…

Q: 36 of 48 A reaction is always non-spontaneous when O AH>0, AS>0 O AH>0, AS O AH O AH0

A:

Q: At high temperatures, ammonia decomposes to N2 and H2:2NH3 (g) ----> N2 (g) + 3H2 (g) ΔH for the…

A: Given information, ΔH for the reaction is positive and ΔS are positive. The given decomposition…

Q: Determine if the following reaction is spontaneous at 298K BaCO3(s) ↔ BaO(s) + CO2(g) ΔHf˚ =…

A:

Q: If AH for a reaction is negative and AS is positive, then the reaction is (a) spontaneous at all…

A: Given : ΔH of the reaction is -ve. And ΔS of the reaction is +ve.

Q: Calculate ΔG for the following reaction at 30°C. Will the reaction occur (be spontaneous)? How do…

A:

Q: 20. What are the signs of AH and AS for a reaction that is spontaneous at any temperature? O A) AH…

A: For a reaction to be spontaneous, the Gibbs free energy value (ΔG) for the reaction should be…

Q: For a process with AH 0 O Never. O AE > 0 O AS > 0

A: A reaction is said to proceed spontaneously at any temperature if the enthalpy decreases and the…

Q: Which will complete the statement? A reaction that is not spontaneous at low temperature can become…

A: Gibbs free energy, ∆G, enthalpy of reaction, ∆H and entropy of reaction, ∆S are related through the…

Q: Vhich one of the following statements correctly describes the signs of q and w for the following…

A: SOLUTION: Step 1: Generally, the spontaneous process occurs in a closed system and it is an…

Q: -254 kJ and AS = -86 J K´1. For a specific chemical reaction, AH = a. Calculate AG at 50 K, 200 K,…

A:

Q: Assuming AH and AS are constant with respect to temperature, under what conditions will a chemical…

A: SOLUTION: Step 1: The Gibbs free energy can be expressed by the expression: ΔG = ΔH – T ΔS For a…

Q: For the following reaction, AH° for the reaction is -206.1 kJ/mol, while AS° is -215 JK•mol. NO (g)…

A: The reaction given in the question is given as - NO (g) + 1/2 Cl2 (g) → NOCl (g) The standard change…

Q: 10. A reaction at 45 °C has the following enthalpy and entropy: AH° = -86.6 kJ and AS = 382J/K. a.…

A: ∆G°=∆H°-T∆S° If ∆G° = -ve, the reaction will be spontaneous. If ∆G° = +ve, the reaction will be…

Q: A

A: We Will Choose Correct option

Q: 4.) Which statement is correct at constant temperature and pressure? A. All reactions for which…

A: Spontaneity of any system is decided by the value of ΔGsys.

Q: . Consider the following reaction at constant pressure. Use the information here to determine the…

A:

Q: Is this reaction endergonic or exergonic, spontaneous or non-spontaneous? Justify

A: Exergonic reaction:  The chemical reaction in which free energy decreases i.e.ΔG is negative are…

Q: Under which conditions is a reaction non-spontaneous at all temperatures, ΔGΔΗ - ΤAS ?

A:

Q: For a process with AH 0 O AS > 0 ΟΔΕ>0 O Never.

A:

Q: The following reaction is spontaneous at room temperature.

A: Since we know that a spontaneous reaction is the reaction which occurs on it own without any outside…

Q: How does temperature affect the spontaneity of a system with AHsys > 0 and AS sys > 0. O The…

A: Given->  ∆Hsys > 0 ∆Ssys > 0

Q: perature, at what temperature does the reaction change from nonspontaneous to spontaneous in the…

A: Temperature (T)= 55400/94.1 = 588.7K

Q: Consider a reaction that has a negative AH and a negative AS. Which of the following statements is…

A:

Q: Indicate whether each statement is true or false. (a) A reactionthat is spontaneous in one direction…

A: (a) The spontaneity of a reaction is determined by the value of standard free energy change of the…

Q: Photochemical smog is formed through a sequence of reactions, the fırst of which is N2(g) + O2(g) –→…

A:

Q: A certain reaction is non-spontaneous under standard conditions, but becomes spontaneous at higher…

A: The correct option has to be given.

Q: 11.13 For a certain reaction at 15°C, AH = -10.5 kJ/mol and AS = 30. J/mol•K. Calculate AG for the…

A: From the equation of Gibb's free energy change, we know ∆G = ∆H -T×∆S where   ∆G = Gibb's the free…

Q: Under which conditions is a reaction non-spontaneous at all temperatures, according to AG = AH – TAS…

A: In this question we have to tell the condition for non spontaneous at all the temperature.

Q: Assuming AH and AS are constant with respect to temperature, under what conditions will a chemical…

A:

Q: For a reaction that has ∆H of -30 kJ and ∆S of -62 J/K, estimate at what temperature will the…

A: ∆G = ∆H - T∆S…

Q: 12. Consider the oxidation of iron metal 4Fe +302g Astotal, Show that the reaction of spontaneous…

A: We need to find ∆Stotal . The sign of it will say that its spontaneous or non- spontaneous. Lets…

Q: Calculate AG for the following reaction at 25°C. Will the reaction occur (be spontaneous)? How do…

A: ΔG for a reaction is calculated as: ΔG = ΔH-TΔS where T is the temperature in Kelvin   A reaction is…

Q: Use the appropriate symbol to represent a non-spontaneous process (>, <, =)  ∆G ________________ 0…

A: ∆G represents change in Gibbs free energy.∆E represents change in Internal energy .K represents…

Q: Calculate AGO at 25°C, given the values of AHO = - 844 kJ/mol and -165 J/mol-K.wt a. AS° b. At what…

A: According to the second law of thermodynamics, the spontaneous nature of the reaction is determined…

Q: For a particular reaction, AH is 20.1 kJ/mol and AS" is 45.9 J/(mol-K). Assuming these values change…

A: Given,  ∆H° = 20.1 kJ/mol  ∆S° = 45.9 J/mol.K

Q: Calculate AG and show that the reaction is spontaneous at 25°C. ΔG° kJ =

A:

Q: Calculate the Kc for the following reaction at room temperature, is it spontaneous? At what…

A: Recall the given reaction       2SO2g + O2g ↔ 2SO3gGiven that ∆Hrxno=-196 kJ…

Q: When AH is negative and AS is positive, the reaction is: ONever spontaneous OSpontaneous at low…

A: Detail solution is given below

Q: Which of the following statements is true? (a) The larger the Q, the larger the ∆G°. (b) If Q = 0,…

A: Spontaneous process is a natural process which occur in a finite period of time.

Q: An spontaneous process ALWAYS has a negative AG O has a negative AH O has a positive AH has a…

A: A spontaneous process is capable of proceeding in a given direction without needing to be driven by…

Q: From the following AH and AS values, predict whether the reaction would be spontaneous. If not, at…

A:

Q: Consider the following reaction between oxides of nitrogen: NO21g2 + N2O1g2 ¡ 3 NO1g2 Calculate ∆G…

A: Standard Gibbs free energy change is given by  ∆Go=∆Ho-T∆So              ........................…

Q: If AH is negative and AS is positive, the reaction is O nonspontaneous at all temperatures. O…

A: The relationship between Gibbs free energy, enthalpy, temperature, and entropy is expressed as,…

Q: Which one of the following statements is false O AG; of elements in their standard states is zero O…

A: Option a: ∆G° of element in their standard states is zero because standard standard is the most…