Answer:
Molecular mass
Explanation:
Molecular formulas is the actual number of atoms of each element in the compound while empirical formulas is the simplest or reduced ratio of the elements in the compound.
Thus,
Molecular mass = n × Empirical mass
Where, n is any positive number from 1, 2, 3...
Thus if the molecular mass is known, then we can find the value of n which results to molecular formula.
Answer:
2.1 x 10^-2
Explanation:
Divide 8.4 x 10^-3 x 8.4 x 10^-3 by 5.82 x 10^-2 and you end up with 2.1 x 10^-2
Answer:
When a system is at equilibrium, <u>the process is not spontaneous at either direction.</u>
Explanation:
The process is not spontaneous at either direction , when a system is at equilibrium ΔG = 0, because -
We know that a negative ΔG indicates a forward-moving phase that is random.
We already know that a positive ΔG implies a non-spontaneous phase going forward.
Thus , here ΔG = 0, so the process is not spontaneous in either direction.
Answer: The athlete will have same mechanical energy at the bottom of the hill.
Explanation:
Mechanical energy is defined as the sum of the potential energy and kinetic energy that is used to do work. Mechanical energy of an object cannot be created nor be destroyed. It can be transformed from one form to another.
M.E= P.E+K.E
The mechanical of the energy of an athlete on skate board on the top of the hill was 'X' joules.
When she reached the bottom of the hill, the mechanical energy of her remained constant. During this process the potential energy from the initial point got transformed into the kinetic energy at final point by which the mechanical energy remained constant.