How many atoms are in 2.12 moles of C₂H₆

1.28 x 10²⁴atoms

Explanation:

Given parameters:

Number of moles of C₂H₆ = 2.12moles

Unknown:

Number of atoms  = ?

Solution:

A mole of a substance is used to quantity the number of atoms or other particles in a substance.

  1 mole of a substance  = 6.02 x 10²³ atoms

 To solve this problem;

 2.12 moles of the C₂H₆ will contain 2.12 x  6.02 x 10²³ atoms

                                                          = 1.28 x 10²⁴atoms

a). in this case, dh> 0 and sd> 0. if t becomes larger, the term "-tds" will become more negative. at some point, it is possible that -dts will be more negative than the dh is positive, and the reaction will become spontaneous. this is probably the correct answer, but you should look at all of the other possibilities and make sure of that.