Answer:
Kc = 4.8x10^13
Explanation:
2 NO2(g) ⇌ N2(g) + 2 O2(g)
(1) 1/2 N2(g) + 1/2 O2(g) ⇌ NO(g) Kc = 4.8 × 10 −10
(2) 2 NO2(g) ⇌ 2NO(g) + O2(g) Kc = 1.1 × 10−5
Using the 2 given reactions you need to form the asked in the first place, in order to do that you multiply one of them by 2 and switch reactants with products and then add them together
(1): 1/2 N2(g) + 1/2 O2(g) ⇌ NO(g) / x2
N2(g) + O2(g) ⇌ 2 NO(g) / switch reactants with products (equivalent to multiply by -1)
2 NO(g) ⇌ N2(g) + O2(g)
(2): 2 NO2(g) ⇌ 2NO(g) + O2(g)
Adding them you get:
2 NO(g) + 2 NO2(g) ⇌ 2NO(g) + O2(g) + O2(g)
After eliminating NO in both sides:
2 NO2(g) ⇌ 2NO(g) + O2(g)
Now that the reaction is formed, everything you multiplied to the reactions you have to do the same in the constant but in the exponent and if you add reactions you multiply each other constants, then:
Kc = (4.8 × 10 −10)^(<u>2*(-1)</u>) * 1.1 × 10−5 = 4.8x10^13
The ball with smaller mass (baseball) will travel faster when he pitcher gives the two balls the same amount of kinetic energy.
The given parameters:
- Mass of the baseball, m = 145 g = 0.145 kg
- Mass of the softball, M = 185 g = 0.185 kg
<h3>What is kinetic energy?</h3>
- Kinetic energy of an object is the energy possessed by the object due to its motion.
The kinetic energy of an object in motion is calculated as follows;
The speed of each ball with respect to their masses is calculated as follows;
Thus, the ball with smaller mass (baseball) will travel faster when he pitcher gives the two balls the same amount of kinetic energy.
Learn more about kinetic energy here: brainly.com/question/25959744
Answer:
Chemical reaction, not physical
Explanation:
When you are dealing with mole calculations, whatever you do to one side of the equation you must also do to the other. .5Fe is 1/8th of 4Fe, so in order to determine what it will yield you must divide the given amount of Fe2O3 and divide THAT by 1/8th, leaving you with .25 mol of Fe2O3.
B) to the right of the arrow