The oxidation of ethanol to acetaldehyde at standard temperature and pressure (STP) is spontaneous. Therefore, the electrochemical potential for this reaction is
a) positive b) negative c) near zero d) not able to be determined
The standard electrode potential and Gibbs free energy must be positive for a spontaneous reaction. Therefore, the electrochemical potential is positive here. Option (a) is correct answer.
The oxidation of ethanol to acetaldehyde at standard temperature and pressure (STP) is spontaneous. Therefore, the...
A certain reaction has positive values for both ΔH and ΔS. Therefore, the reaction a. can be spontaneous if the temperature is low enough. b. Cannot be spontaneous at any temperature. c. must be spontaneous at all temperatures. d. can be spontaneous if the temperature is high enough. e. has a positive free energy at any temperature.
30) At constant pressure and temperature, which statement is true? A) All reactions for which k < 1 are spontaneous B) All reactions for which AG are spontaneous C) All reactions for which AH<0 are spontaneous. D) All reactions for which AS <0 are spontaneous 11) 11) Consider the galvanic cell, Pb(s) IP20) Cu2+(a) Cu(s). Which one of the following changes to the cell would cause the cell potential to increase (ie, become more positive)? A) increase the mass of...
In an electroplating cell which of the following correlations is true? A) a spontaneous oxidation reaction is occurring at the anode in the plating bath B) the positive pole of the power source is attached to the anode C)The negative pole of the power source is attached to the anode D) Both A and C Please explain your answer, thank you!
Solve For a process at constant temperature and pressure, if DeltaG is positive, the process is,if DeltaG is negative, the process is, and if DeltaG is zero, the process is. a. at equilibrium, spontaneous, nonspontaneous b. nonspontaneous, spontaneous, at equilibrium c. spontaneous, at equilibrium, nonspontaneous d. spontaneous, nonspontaneous, at equilibrium e. none of these 18. For a chemical reaction to be spontaneous at all temperatures, which of the following conditions must be met? a. DeltaSdegree > 0, DeltaHdegree > 0...
Under standard temperature and pressure, molecular hydrogen will undergo a spontaneous exchange reaction with molecular chlorine to form gaseous hydrochloric acid. Determine the change in enthalpy and internal energy associated with the production of 1.50 moles of acid.
The density of nitrogen gas (N2) at standard temperature and pressure (STP, 0°C and about 1atm) is 1.25 kg/m3, while the density of liquid nitrogen at atmospheric pressure is 0.81 x 103kg/m3. Let D denote a typical distance between nitrogen molecules in its gas (i) Assuming that the nitrogen atoms in the liquid are basically touching each other, esti- ii) Using the ideal gas equation of state determine the volume of 1 mole of gas at STP. phase and d...
What is true if ln K is zero? A)ΔGorxn is positive and the reaction is spontaneous in the reverse direction. B)ΔGorxn is positive and the reaction is spontaneous in the forward direction. C)ΔGorxn is negative and the reaction is spontaneous in the forward direction. D)ΔGorxn is negative and the reaction is spontaneous in the reverse direction. E)ΔGorxn is zero and the reaction is at equilibrium.
8:36 Question 6 of 16 Submit What is Standard Temperature and Pressure (STP)? A) 298.15 K and 1.00 atm B) 273.15 K and 1.00 atm C) 273.15 K and 0.00 atm
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...
the first one is supposed to be meant spontaneous. thanks ction to be non-spontaneous at any temperature, which of the following В. Tur a chemical reaction to b conditions must be met? AS > 0, AITO AS > 0, AIT <0 AS <0, AHP <0 AS <0, AHP>0 D. 2. Place the following in on lowing in order of decreasing standard molar entropy. N204(8) NO(g) NO2(g) 204 > NO2 > NO B) NO > NO2 > N204 E) NO2 >...