Answer:
0.38
Explanation:
Molar mass of thiophene= 84g/mol
Mass of thiophene = 37g
Number of moles= 37/84= 0.44 moles
Molar mass of heptane= 100 g/mol
Mass of heptane = 72g
Number of moles = 72/100= 0.72 moles
Total number of moles= 0.44 + 0.72= 1.16 moles
mole fraction of thiophene = 0.44/1.16= 0.38
Uranium, most uranium does derive from a star. However, not from our sun.
Answer:
Dynamic equilibrium occurs when the rate of the forward reaction equals the rate of the reverse reaction:
Explanation:
Reaction quotient is the ratio of product of concentrations of products to product of concentrations of reactants at any time.
The same ratio at equilibrium (when rate of forward reaction becomes equal to rate of backward reaction) is equilibrium constant.
when Q < Kc, a forward reaction is favored.
When when Q > Kc, a backward or reverse reaction is favored
So the first statement that
a) A reaction quotient (Q) larger than the equilibrium constant (K) means that the reaction will favor the production of more products: false
b) No the rate of forward and backward reaction are equal.
c) c. Dynamic equilibrium occurs when the rate of the forward reaction equals the rate of the reverse reaction: True
d) Dynamic equilibrium indicates that the amount of reactants and products are equal: This could be static equilibrium but not dynamic.
