Answer : The rate constant for this reaction at 384.7 K is,
Explanation :
The relation between frequency factor, rate constant and activation energy for a chemical reaction is,
where,
k = rate constant = ?
A = frequency factor =
Ea = activation energy = 12.9 kJ/mol
T = temperature = 384.7 K
Now put all the given values in this formula, we get:
Therefore, the rate constant for this reaction at 384.7 K is,
ANOTHER RUNNING DOG
Explanation:
In the given question it is to find a suitable reference point to describe the motion of dog. Here I could suggest that it is better to compare the dog with another running dog to create the relative speed difference to get a reliable motion variation.
Because the motion of dog is in the linear with respect to the another dog and to the acceleration produced by the dog in the required interval is easy to calculate with respect to another dog which is already in motion.
Hence, I suggest that Motion of dog can be analysed better by analyse the motion variation of dog with another dog running.
No, water is the thing that gets pollutant, then again due to all the pollution in water it can cause to hurt others with the pollution
Gallium-72
Explanation:
Gallium has 31 protons, and no of protons define the atom (which element it is), that rules out Yttrium. Gallium also has the isotope Gallium-70(31+39=70), so when you add 2 neutrons you get Gallium-72.