Kinetic energy is directly proportional to the mass of the object and to the square of its velocity: K.E. = 1/2 m v2. If the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.
Liquids have a definite volume, but not a definite shape. Hope this helps :)
Planck suggested that light/energy was absorbed/released in certain amounts, called quanta.
The temperature of vinegar does increase the rate of reaction according to the collision theory.
Hope this answers your question!
