Answer:
Kc = 1.35x10^7
Explanation:
Let's write the reaction again:
2R + A <------> 2Z Kp = 5.51x10^5
In order to know the value of Kc, we need to write the expression that relations the Kp with Kc which is:
Kp = Kc * (RT)^Δn (1)
Where:
R: 0.082 L atm/ K mol
Δn: difference between the coefficients of the reaction
Kc: equilibrium constant
T: temperature in K
Now, from the equation (1) we can solve for Kc:
Kc = Kp / (RT)^Δn (2)
Now, before do any calculations, let's do first the value of Δn:
Δn = 2 - (2+1) = -1
Now, replacing all values in (2):
Kc = 5.51x10^5 / (0.082*298)^-1
Kc = 1.346x10^7
The third option is the correct one.
Answer:
The density of a material given is <u>1.55 g/mL</u>
Explanation:
Density = Mass per unit volume of the substance .
Initial Volume of water = 47.54 mL
Total volume = Volume of water + material = 50.78 mL
Volume of material = Total volume - volume of water
Volume of material = 50.78 - 47.54 = 3.24 mL
Volume of material = 3.24 mL
Mass of the material = 5.03 g
The density of a material given is <u>1.55 g/mL</u>
Answer:
the most common injuries from accidents involving dangerous machinery and heavy equipment include: Lacerations. Crushed limbs, hands or fingers. Broken bones.
Answer: The correct option is B.
Explanation: To describe the motion of an object, we use the equations of motion.
From the above equations, we require position, speed and direction through which we an calculate the displacement, velocity and acceleration.
To calculate the complete motion of an object, we require all the three factors.
Hence, the correct option is B.