Answer:
1. The enthalpy change for the backward reaction is –20 KJmol¯¹
2. The forward reaction is endothermic.
3. The activation energy for the forward reaction is +70 KJmol¯¹.
Explanation:
Considering the diagram given above, the following data were obtained:
1. The enthalpy change for the forward reaction being is +20 KJmol¯¹ and so, the enthalpy change for the backward reaction is –20 KJmol¯¹
2. The heat energy of the product is higher than that of the reactant. Therefore, the forward reaction is endothermic.
3. Activation energy is the minimum energy needed to be overcome in order for the reaction to proceed to product. It can be obtained from the energy profile diagram by considering the energy between the reactants and the peak.
For the question given above, Activation energy = 20 + 50
Activation energy = +70 KJmol¯¹
How do you convert gallons to cups?
OK, so we know
1 gallon = 16 cups
So to convert an amount of gallons, you just multiply the amount of gallons by 16 since there are 16 cups per gallon.
Example:-
7 gallons = ? cups
What we know:-
1 gallons = 16 cups
convert 7 gallons to cups.
7 × 16 = 112
7 gallons = 112 cups
Easy right, yeah?
Thats as simple as that!
The answer to you’re question is the last one 642.9 grams.
A big stadium that has a positive charged marble in the center of the stadium.