All categories

3 years ago

Which of the following is an example of kinetic energy?

Chemistry

1 answer:

deff fn [24]3 years ago

7 0

Answer:

A. The energy of moving particles near a fire

Explanation:

You might be interested in

Diamond is an allotrope of :

Marat540 [252]

Answer:

carbon

Explanation:

because it is an allotrope of carbon

5 0

3 years ago

Read 2 more answers

It takes 281.7 kJ of energy to remove 1 mole of electrons from the atoms on the surface of lithium metal. If lithium metal is ir

Alex17521 [72]

Answer:

The maximum kinetic energy of electron is = 2.93 × $10^{-19}$ Joule

Explanation:

We know that total energy

$E = \frac{hc}{\lambda}$ ------------ (1)

Here h = plank's constant = 6.62 × $10^{-34}$ J s

c = speed of light = 3 × $10^{8}$ $\frac{m}{s}$

$\lambda$ = 261 nm = 261 × $10^{-9}$ m

Put all these values in equation (1) we get

E = 7.6 × $10^{-19}$ J

We know that

Total energy = Energy to remove an electron + K.E of electron

Energy to remove an electron = $\frac{281.7 (1000)}{(6.023)10^{23} }$

Energy to remove an electron = 4.67 × $10^{-19}$ J

K.E of electron = Total energy - Energy to remove an electron

K.E of electron = 7.6 × $10^{-19}$ - 4.67 × $10^{-19}$

K.E of electron = 2.93 × $10^{-19}$ Joule

Therefore the maximum kinetic energy of electron is = 2.93 × $10^{-19}$ Joule

3 0

4 years ago

"You are asked to classify an exocrine gland found in the skin based solely on the chemical analysis of its product, which turns

Mice21 [21]

Answer:

sweat glands

Explanation:

sweat glands are the only ones that can produce dermcidin, Nacl, urea and ammonia.

5 0

4 years ago

Read 2 more answers

Visible light waves are part of the blank Spectrum

Ilia_Sergeevich [38]

Visible light spectrum or electromagnetic spectrum

6 0

3 years ago

Consider the diagram below

Artyom0805 [142]

Energy of the reactants would be correct

5 0

2 years ago