All categories

1 year ago

What happens as a result of the photoelectric effect? A.light is produced

Chemistry

1 answer:

Brrunno [24]1 year ago

3 0

Answer:

photoelectric effect, phenomenon in which electrically charged particles are released from or within a material when it absorbs electromagnetic radiation. The effect is often defined as the ejection of electrons from a metal plate when light falls on it.

You might be interested in

How much is 35° C in F?

Furkat [3]

It's 95 F
The formula is the following:
T

4 0

3 years ago

Determine the frequency of a green laser with a wavelength of 532nm.

const2013 [10]

Answer:

$5.64*10^{14}$ m

Explanation:

C = Fλ

C: Speed of light = $3*10^8$ m/s

f: Frequency (Hz)

λ: Wavelength (m)

Rearrange formula for wavelength:

C/F = λ

$\frac{3*10^8}{532*10^{-9}} =5.64*10^{14}m$

6 0

2 years ago

Consider the reaction PCl5(g) ⇌ PCl3(g) + Cl2(g). If 0.02 moles of PCl5, 0.04 moles of PCl3, and 0.08 moles of Cl2 are combined

Furkat [3]

Answer:

The reaction quotient (Q) before the reaction is 0.32

Explanation:

Being the reaction:

aA + bB ⇔ cC + dD

$Q=\frac{[C]^{c} *[D]^{d} }{[A]^{a}*[B]^{b} }$

where Q is the so-called reaction quotient and the concentrations expressed in it are not those of the equilibrium but those of the different reagents and products at a certain instant of the reaction.

The concentration will be calculated by:

$Concentration=\frac{number of moles of solute}{Volume}$

You know the reaction:

PCl₅ (g) ⇌ PCl₃(g) + Cl₂(g).

So:

$Q=\frac{[PCl_{3} ] *[Cl_{2} ] }{[PCl_{5} ]}$

The concentrations are:

[PCl₃]= $\frac{0.04 moles}{0.5 L} =0.08 \frac{moles}{L}$

[Cl₂]= $\frac{0.08 moles}{0.5 L} =0.16 \frac{moles}{L}$

[PCl₅]= $\frac{0.02 moles}{0.5 L} =0.04 \frac{moles}{L}$

Replacing:

$Q=\frac{0.08*0.16}{0.04}$

Solving:

Q= 0.32

The reaction quotient (Q) before the reaction is 0.32

4 0

2 years ago

What is a type of mechanical weathering in which rocks are broken by the expansion of water as it freezes in joints, pores, or b

Stolb23 [73]

Answer:

irozion

Explanation:

7 0

2 years ago

Read 2 more answers

Is tropism the response of a plant to light, gravity, touching . or water?

solniwko [45]

Answer:

all

Explanation:

it can be from all as some plants are hydrotrophic i.e. they get attracted to water but some get away from water. Same sunflower faces sun from morning to evening but some plants get burnt while in sun.

3 0

2 years ago