Place the following species in order of increasing molar entropy at 35°C. Assume that they are all in the gas phase. SiO2          Si4H10          SiO Group of answer choices Si4H10    <  SiO2  <  SiO SiO  <  SiO2  <  Si4H10 SiO2  <  Si4H10  <  SiO SiO2  <  SiO <  Si4H10 Si4H10  <  SiO <  SiO2 SiO  <  Si4H10  <  SiO2

Place the following species in order of decreasing molar entropy at 55°C. Assume that they are all in the gas phase. SiO2          Si4H10          SiO   SiO2  >  Si4H10  >  SiO Si4H10  >  SiO2  >  SiO SiO2  >  SiO >  Si4H10 SiO  >  Si4H10  >  SiO2 Si4H10  >  SiO >  SiO2 SiO  >  SiO2  >  Si4H10

In which of the following processes would the entropy of the system increase?   A liquid forming from a gas.   A solid forming from a gas.   The number of gas molecules increasing during a chemical reaction.   A solid precipitating from a solution.

Which one of the following choices of gaseous molecules is rank ordered correctly from lowest standard molar entropy (left hand side) to highest standard molar entropy (right hand side)?     He, Ne, CO, SiH4     SiH4 , CO, Ne, He     SiH4 , Ne, CO, He     CO, SiH4 , Ne, He

Spontaneous chemical reactions proceed until they hit equilibrium.  Once the reaction hits equilibrium, it stops until the product or reactant concentration changes.  The reaction will then start again until the equilibrium concentrations of reactants and products are restored. If the statement isn’t accurate then tell me why that is the case.

Which pure substance under standard conditions would have the highest entropy?   O2   HCl   CH3OH   S

Which statement is true about the relationship between entropy and spontaneity? spontaneous reactions tend to lead to higher entropy entropy is the same as spontaneity as entropy increases, spontaneity decreases as entropy increases, spontaneity is unaffected