In a spontaneous process, the entropy of the system always increases. True or False

For the synthesis of nitrogen dioxide, NO2: 2N2(g) + O2(g) 2NO2(g) this reaction has the energy diagram shown. What is the spontaneity of the reaction? Reaction coordinate Enthalpy

Read the descriptions of physical or chemical changes in the table below. Then decide whether the change will be spontaneous, if you can. Change A solid absorbs heat and turns to a gas. During an endothermic chemical reaction, a gas is consumed and a liquid produced. During an exothermic chemical reaction, two moles of gaseous reactants are turned into four moles of gaseous products. OO O Is this change spontaneous? Yes. No. Can't decide with information given. Yes. No. Can't decide with information given. Yes. No. Can't decide with information given. X 5

which statement about entropy is true? non-spontaneous reactions sometimes will happen all by themselves entropy stops when pure substances are in solid state the entropy of the universe is increasing during a change of state there is no change in entropy

Read the descriptions of physical or chemical changes in the table below. Then decide whether the change will be spontaneous, if you can. Change A solid substance dissolves in water, releasing heat as it does so. During an endothermic chemical reaction, a gas is consumed and a liquid produced. During an endothermic chemical reaction, four moles of gaseous reactants are turned into two moles of gaseous products. OO O Is this change spontaneous? Yes. No. Can't decide with information given. Yes. No. Can't decide with information given. Yes. No. Can't decide with information given. X Ś

What happens to the entropy of an isolated system during an irreversible process?

The Gibbs free energy (G) relates directly to which fundamental law of thermodynamics? O The First Law of Thermodynamics The Third Law of Thermodynamics O The Zeroth Law of Thermodynamics O The Second Law of Thermodynamics

- Chapter 9 and 18 - Thermodynamics Exercise 18.36 Enhanced with Feedback and Hints Without doing any calculations, determine the sign of ASsys for each of the following chemical reactions. Drag the appropriate items to their respective bins. • View Available Hint(s) Reset Help CH4(g) + 202(g)→ CO2(g) + 2H2O(1) 203(g) → 302(g) SO3(g) + H2O(1)→H2SO4(1) Mg(s) + Cl2 (g) → MgCl2 (s) ASsy greater than 0 ASy smaller than 0

Read the descriptions of physical or chemical changes in the table below. Then decide whether the change will be spontaneous, if you can. Change Is this change spontaneous? Yes. A solid precipitates from a solution, absorbing heat as it does so. No. Can't decide with information given. Yes. During an exothermic chemical reaction, four moles of gaseous reactants are turned into two moles of gaseous products. No. Can't decide with information given. Yes. A gas expands, absorbing heat from its surroundings. No. Can't decide with information given.

When a liquid freezes, its entropy increases: true or false?