Category: Chemistry

No.	Topics.	No.	Topics.
1.	ALCOHOLS AND PHENOLS	2.	ALDEHYDES & KETONES
3.	ALKYL HALIDES	4.	ATONTIC STRUCTURE
5.	CARBOXYLIC ACIDS	6.	CHEMICAL BONDING
7.	CHEMISTRY OF HYDROCARBONS	8.	CHETVI ICAL EQUI LIBIRIUM
9.	ELECTROCHE]VIISTRY	10.	FUNDAMENTAL CONCEPTS OF CHEMISTRY
11.	FUNDAMENTAL PRICIPLES OF ORGANIC CHEMISTRY	12.	GASES
13.	INDUSTRIAL CHEMISTRY	14.	LIQUIDS
15.	Macro Mulecule	16.	REACTION KINETICS
17.	S AND P BLOCK ELEMNETS	18.	SOLIDS
19.	THERMOCHEMISTRY & ENERGETICS OF CHEMICAL REACTIONS	20.	TRANSITION ELEMENTS

Calculate the energy of a photon that has a momentum of 1.1?10?27 kg m/s.

3.3?10?19 J
3.3?10?20 J
3.3?10?21 J
3.3?10?18 J

A photon has a wavelength of 300 nm. What is its energy in eV?

4.14 eV
2.07 eV
8.28 eV
1.03 eV

What is the momentum of a photon with energy 3 eV?

1.6?10?27 kg m/s
4.8?10?19 kg m/s
4.8?10?27 kg m/s
1.6?10?19 kg m/s

A monochromatic light source emits 100 J of energy per second. If the wavelength of the light is 500 nm, how many photons are emitted per second?

2.51?1020
2.51?1021
5.02?1020
5.02?1021

Calculate the energy of a photon with a frequency of 2.0?1015 Hz in eV.

8.29 eV
13.26 eV
2.0 eV
1.6 eV

If a photon has a momentum of 3.315?10?27 kg m/s, what is its energy?

9.945?10?19 J
1.105?10?35 J
3.315?10?19 J
9.945?10?18 J

What is the momentum of a 400 nm photon?

1.658?10?27 kg m/s
1.658?10?28 kg m/s
1.658?10?29 kg m/s
1.658?10?26 kg m/s

How many photons of green light (550 nm) are needed to supply 1 J of energy?

2.76?1018
2.76?1017
2.76?1019
2.76?1020

What is the energy of a photon with a frequency of 1.0?1018 Hz?

6.63?10?16 J
6.63?10?15 J
6.63?10?14 J
6.63?10?17 J

Calculate the frequency of a photon with energy 2 eV.

4.83?1014 Hz
3.2?10?19 Hz
4.83?1013 Hz
2.41?1014 Hz

An ultraviolet photon has a wavelength of 250 nm. What is its energy?

7.956?10?19 J
7.956?10?18 J
7.956?10?20 J
7.956?10?21 J

What is the energy of a photon of red light with a wavelength of 700 nm?

2.84?10?19 J
2.38?10?19 J
3.0?10?19 J
3.5?10?19 J

A radio station broadcasts at 95 MHz. What is the energy of a photon from this broadcast?

6.30?10?26 J
6.30?10?28 J
6.30?10?29 J
6.30?10?27 J

How many photons are there in a 10 J pulse of green light with a wavelength of 500 nm?

2.51?1019
2.51?1020
5.02?1019
5.02?1020

If a photon has an energy of 10 eV, what is its frequency?

2.41?1015 Hz
1.6?10?18 Hz
1.6?10?19 Hz
2.41?1016 Hz

What is the momentum of a photon with wavelength 500 nm?

1.326?10?27 kg m/s
3.315?10?27 kg m/s
6.63?10?27 kg m/s
9.945?10?27 kg m/s

What is the momentum of a photon with energy 6.0?10?19 J?

2.0?10?27 kg m/s
1.8?10?10 kg m/s
6.0?10?27 kg m/s
3.0?10?27 kg m/s

If a photon has a frequency of 7.5?1014 Hz, what is its energy in eV?

3.1 eV
2.5 eV
3.5 eV
4.0 eV

Convert 8.0?10?19 J to electron volts (eV).

5.0 eV
8.0 eV
12.8 eV
0.5 eV

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