Under what conditions could some exothermic (δh< 0) reactions be nonspontaneous (δg> 0)?
a. the products have greater potential energy than the reactants.
b. the products and reactants have equal entropy.
c. the overall reaction reduces entropy (products have less entropy than reactants).
d. the overall reaction results in an increase in entropy (products have greater entropy than reactants)

When in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? view available hint(s)when in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? active transportexocytosis

Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion

The energy required to vaporize a certain amount of a substance is greater than the amount of energy necessary to raise the temperature of the same amout of that substance by 1 degreee celcius