Its C increase in temperature
I am not sure about 13 but 12) is that most elements are non metald
Answer:
0.023
Explanation:
The Arrhenius' equation states that:
Where k is the velocity constant of the reaction, A is the constant of the collisions, Ea is the activation energy (the energy necessary to the molecules have so the reaction will happen), R is the gas constant (8.314 J/molK) and T is the temperature.
This equation is derivated of:
k = pZf
Where
p=fraction of collisions that occur with reactant molecules properly oriented
f=fraction of collisions having energy greater than the activation energy
Z=frequency of collisions
Thus, p*Z = A, and
f =
So, if the energy of the molecules is 12.5 kJ/mol = 12500 J/mol, thus the fraction will be:
f =
f = 0.023
it is less dense then cold
Answer:
b) The acidic conditions break down foods directly.
c) It allows for the activation of pepsinogen into pepsin.
Explanation:
The acid inactivates all the enzymes in the food, and begins its own function of breaking down what is left of the food in combination with the enzyme pepsin. Finally, this nutrient rich food concentrate moves in the small intestine. There the acid is neutralized and enzymes produced by the pancreas are reintroduced to complete the process.