How does the kinetic energy of a substance's particles in the gas phase compare to their kinetic energy in the solid phase?

a. the kinetic energy of the solid and liquid phases is the same.
b. the kinetic energy of the substance's particles will depend on the volume of the substance.
c. the particles have less kinetic energy in the gas phase than in the solid phase. d. the particles have more kinetic energy in the gas phase than in the solid phase.

"record the time to complete a chemical reaction" would most likely be part of a lab procedure.

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;

answer : third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

explanation :

let us write down the given equations

equation 1 :

equation 2 :

equation 3 :

let us use hess's law to find out which 2 equations can be added to get the third equation.

let us reverse equation 2 and multiply it by 2. the new equation that we get is,

equation 4 :

let us add equation 1 & 4

the above equation is similar to equation 3 but has different value for dhrxn.

therefore third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

the correct answer would be b. amelia, because the particals of gas move really fast (charged particals) and gas also has a lot of room (particals move independently) so the only answer that has both of those is amelia's.