The rate of reaction at 550 k is ten times faster than the rate of reaction at 440 k. find the activation energy from the collision theory. a) 40075.14 j/mol b) 50078.5j/mol c) 44574.5 j/mol d) 43475.5 j/mol

Answer :  a) 40075.14 J/mol

Explanation :

According to the Arrhenius equation,

or,

where,

= rate constant at = k

= rate constant at = 10 k

= activation energy for the reaction = ?

R = gas constant = 8.314 J/mole.K

= initial temperature = 440 K

= final temperature = 550 K

Now put all the given values in this formula, we get :

Therefore, the activation energy for the reaction is 40075.14J/mol.

both adhesion and cohesion are attractions.

they are different in that adhesion is the force of attraction between the molecules of two different substances, whereas cohesion is the force of attraction between molecules of the same substance.

possible examples include capillary action, in which the adhesion between water and glass causes the water to rise in a narrow tube against the force of gravity.

because of hydrogen bonding, water is extremely cohesive.

this causes molecules on the surface of water to be drawn inward, which is why drops of water form beads on smooth surfaces.

hope this .

the answer is a! (2.9 x 10^-18 j) hope i could someone. : )