9. a substance dissolves in water by breaking up into smaller pieces. these pieces of the same substance spread throughout the water. this process is known as
10. stirring increases the rate of solution of a solid in a liquid because solute particles in solution are moved the surface of the solute.

answer is d because it is trust me

in the given question, the partial pressure is calculated by using the ideal gas equation, that is, pv = nrt

here, p is pressure, v is volume = 25 l, n is number of moles = 0.0104 moles, r is gas constant = -0.0821 l.atm / mol.k

t is temperature = 273 k

p = nrt / v

p = (0.0104 mol × 0.0821 l.atm / mol.k × 273 k) / 25 l

= 0.0093 atm