| Sections | |||
|---|---|---|---|
| Spontaneous Reaction | 10 mins | 0 completed | Learn |
| First Law of Thermodynamics | 6 mins | 0 completed | Learn Summary |
| Entropy | 58 mins | 0 completed | Learn Summary |
| Gibbs Free Energy | 30 mins | 0 completed | Learn |
| Additional Practice |
|---|
| Second and Third Laws of Thermodynamics |
| Boltzman Equation |
Solution: What can be said about an endothermic reaction with a negative entropy change?The reaction is
Problem
What can be said about an endothermic reaction with a negative entropy change?
The reaction is
Practice Problems
What is true for the following reaction under stan...
The sublimation of solid carbon dioxide is a spont...
Consider the equation carefully, and think about t...
Which statement best describes spontaneous reactio...
A mixture of hydrogen and chlorine remains unreact...
Given the following reaction: A(g) ⇌ B(g), the for...
For the reaction A + B ⇌ C + D, ΔH°= +40 kJ and ΔS...
Reactions with positive values of ∆S º r always be...
A spontaneous chemical reaction is FAVORED by whic...
A reaction has a standard entropy change of +32.83...
Which reaction below is most likely spontaneous at...
What factor ultimately determines whether any phys...
Consider the following facts: water freezes sponta...
For the process O2 (g) → 2 O (g), ΔH ° = + 498 kJ....
At 25 oC, ΔHo = 1.895 kJ and ΔSo = – 3.363 J/K for...
For each of the following chemical processes, stat...
Which of the following processes WILL NOT be spont...
When a liquid evaporates, which is true about the ...
Consider the following facts: water freezes sponta...
Which of the following is an example of a nonspont...
A spontaneous endothermic reaction always
A) caus...
Given that the normal freezing point of ammonia is...
The combustion reactions of hydrocarbons are react...
The thermodynamic condition for a spontaneous proc...
Sodium carbonate can be made by heating sodium bic...
If a process has a ΔH = +48 kJ/mol and a ΔS = -130...
Which of the following statements is TRUE?
(a) An...
When barium hydroxide is dissolved in water, the t...
For the reaction A2(g) + B(s) → A2B(g)
ΔH° > 0...
You observe that carbon dioxide sublimes. Which of...
For the reaction given below, ΔH° = -1516kJ and ΔS...
Kw for the auto-ionization of water, H2O(l) → H+(a...
Based on your knowledge of carbon allotropes, You ...
Consider the following sets. Which one indicates a...
For the reaction
2 SO3(g) → 2 SO2(g) + O2(g)
∆H◦...
Consider a reaction that has a positive ΔH and a p...
Solid ammonium nitrate is very soluble in water. W...
Consider a 1.00 L solution of 0.150 M HCN (Ka = 4....
The following reaction is endothermic:
2 H2O (l) ...
Ethane is C2H6. Consider the reaction below:
C2H...
The plot of change in free energy versus temperatu...
Consider the reaction: 2O(g) → O2(g)
a) Predict t...
Above what temperature does the following reaction...
When solid NH4NO3 is dissolved in water at 25°C, t...
For the reaction
2 SO3(g) → 2 SO2(g) + O2(g)
∆H◦...
The equilibrium constant for the reaction
NH4Cl(s...
The normal freezing point of ammonia is -78°C. Pre...
Which of the following is a description of a phase...
What would be the signs of ∆H and ∆S for the react...
For a reaction in which ΔH = 125 kJ/mol and ΔS = 3...
For the reaction
2 C(s) + 2 H2(g) → C2H4(g)
∆H°...
Which of the following statements are true?
I. In...
Which of the following are the thermodynamic signs...
Consider the conversion of a substance from solid ...
The following reaction is exothermic.
...
The following reaction is endothermic:
...
If a reaction is exothermic but experiences a decr...
For a certain chemical reaction,ΔH = 128 kJ/mol an...
The reaction between elemental nitrogen and elemen...
When ammonium ion and nitrate ion combine they for...
Which of the following is required for a spontaneo...
Which of the following is true regarding a non-spo...
The standard free energy of formation of CS 2 (l) ...
Which reaction below is most likely spontaneous at...
Hot and cold packs are commercially available for ...
A particular chemical reaction has a negative ΔH a...
What can be said about an exothermic reaction with...
For a chemical reaction to be spontaneous for stan...
For a particular reaction, ΔH°sys = 40 kJ and ΔS°s...
At constant pressure, the following reaction is ex...
Consider the following reaction at 120°C. Which st...
Classify the following phase changes by the signs ...
A particular chemical reaction has a negative ΔH a...
Which of the following reactions are spontaneous (...
Above what temperature does the following reaction...
For the chemical reaction, A → B, choose the combi...
Under standard conditions (298 K and 1 atm), which...
Which of the following reactions are spontaneous (...
Sodium carbonate can be made by heating sodium bic...
Above what temperature does the following reaction...
Which of these processes is spontaneous?a) the com...
Which of the following statements best describes a...
Which of the following is true regarding a non-spo...
A reaction that is spontaneous as written ________...
Which of the following processes are spontaneous? ...
Consider the reaction:
FeO(s) + Fe(s) + O2(g)→ Fe...
Which statement best describes the following endot...
Consider a reaction that has a positive ΔH and po...
Above what temperature does the following reaction...
If a solute dissolves in an endothermic process
a...
Based on the following graph below, determine the ...
A spontaneous chemical reaction is FAVORED by whic...
Which statement is true regarding the sublimation ...
What can be said about an Endothermic reaction wit...
Below what temperature does the following reaction...
Fill in the blanks.
Select the statements below that are false and why...
For the decomposition of calcium carbonate, consid...
Which of the reactions are spontaneous as written....Which of these statements are true? If ΔH = -80.0 kJ and ΔS = -0.400 kJ/K, the reactio...Making Methanol The element hydrogen is not abunda...
For each phase change, determine the sign of ΔH an...
Which of the following processes are spontaneous?a...For a particular reaction, delta Hº is 55.4 kJ/mol...What can be said about an endothermic reaction wit...The following generic reaction will always be spon...