Answer:
A.
Explanation:
The work function of the Platinum =
For maximum wavelength, the light must have energy equal to the work function. So,
Where,
h is Plank's constant having value
c is the speed of light having value
is the wavelength of the light being bombarded
Thus,
This is true as some parts cannot be checked but the radioactive substances can be used in x-rays
Most ocean life is found in coastal habitats. Coastal habitats have more light than the deep ocean resulting in a higher concentration of organisms. Plant species are especially abundant in coastal habitats.
Answer:
9.0 L.
Explanation:
- To solve this problem, we should use the general gas law of ideal gas:
PV = nRT.
where,
P is the pressure of the gas in (atm).
V is the volume of the gas in (L).
n is the no. of moles of the gas (mol).
R is the general constant for gases (R = 0.082 L.atm/mol.K).
T is the temperature of the gas in (K).
- Since the P, T and R are constants, the variables are V and n.
<em>∴ V₁n₂ = V₂n₁.</em>
V₁ = 6.0 L & n₁ = 0.50 mol.
V₂ = ??? L & n₂ = 0.75 mol.
∴ V₂ = (V₁n₂) / (n₁) = (6.0 L)(0.75 mol) / (0.50 mol) = 9.0 L.
It is 300! hope this helps :)