Answer:

Explanation:
Using the expression for the photoelectric effect as:

Also, 

Applying the equation as:

Where,
h is Plank's constant having value 
c is the speed of light having value 
is the wavelength of the light being bombarded
Given, 
is the binding energy or threshold energy
is the kinetic energy of the electron emitted. = 
Thus, applying values as:





<span>The </span>equilibrium<span> will </span>shift<span> to favor the side of the reaction that involves fewer moles of gas.
Its C
</span>
Answer:
Reaction 1 = -462.5 kJ/mol
Reaction 2 = -572 kJ/mol
Magnesium combustion = -601.83 kJ/mol
The answer would be millimeters
so answer choice d
Answer:
<h2>5080 mL</h2>
Explanation:
The volume of the gas at standard pressure can be found by using the formula for Boyle's law which is

Since we are finding the new volume

From the question we have

We have the final answer as
<h3>5080 mL</h3>
Hope this helps you