eV to Joules (Defining these Units) Question

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noelle_lipschutz_3F
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eV to Joules (Defining these Units) Question

Postby noelle_lipschutz_3F » Sat Oct 31, 2020 9:53 am

Can someone help me define a unit? What is eV and how does it relate to the units Joules?

Helena Xu 3L
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Re: eV to Joules (Defining these Units) Question

Postby Helena Xu 3L » Sat Oct 31, 2020 9:56 am

eV stands for electron volts and 1 eV = 1.602 x 10^-19 Joules, which is given on the constants and equations sheet.

ALee_1J
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Re: eV to Joules (Defining these Units) Question

Postby ALee_1J » Sat Oct 31, 2020 11:32 am

Most relevant units and conversions will be provided on the constants and equations sheet that Dr. Lavelle provided us with.

Lauren Sarigumba 1K
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Re: eV to Joules (Defining these Units) Question

Postby Lauren Sarigumba 1K » Sat Oct 31, 2020 12:02 pm

You are not expected to memorizes the eV to Joule conversions because it is given on the constants and equations worksheets, the conversion given on Lavelle's constants and equations paper is 1 eV = 1.674927*10^-19 J (be aware that it is the conversion for J, not kJ)

Violet Kwan 3H
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Re: eV to Joules (Defining these Units) Question

Postby Violet Kwan 3H » Sat Oct 31, 2020 1:01 pm

Sometimes questions will give you a number in terms of eV and you need to convert it to J (or vise versa). The relationship is shown on the formula sheet as everyone said. Be sure to check what the question is asking for so you don't miss the answer due to having incorrect units! :)

Jayasree Peri 2J
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Re: eV to Joules (Defining these Units) Question

Postby Jayasree Peri 2J » Sat Oct 31, 2020 8:07 pm

The definition of an electron volt is the amount of Ek that an electron gains by accelerating through a volt (in vacuum) of electric potential difference.

Hailey Qasawadish 2J
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Re: eV to Joules (Defining these Units) Question

Postby Hailey Qasawadish 2J » Sun Nov 01, 2020 11:04 am

An eV is an electron volt. There is an easy conversion between eV and Joules which is that 1 eV is equal to 1.602 x 10^-19 Joules. (So you would just have to multiply eV's by that conversion factor). This is listed on the equation sheet provided by Dr. Lavelle!

Simi Kapila_3E
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Re: eV to Joules (Defining these Units) Question

Postby Simi Kapila_3E » Sun Nov 01, 2020 11:08 am

eV stands for electric volts. The conversion is 1 eV=1.60218x10^-19 J

Vanshika Bhushan 1A
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Re: eV to Joules (Defining these Units) Question

Postby Vanshika Bhushan 1A » Sun Nov 01, 2020 3:28 pm

An eV is an electron volt, which is the energy acquired by an electron accelerating through a potential difference of one volt. One electron volt is equal to 1.602176565 x 10^-19 J (joules) and one joule is equivalent to 6.241509 x 10^18 electron volts.

Kat Stahl 2K
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Re: eV to Joules (Defining these Units) Question

Postby Kat Stahl 2K » Sun Nov 01, 2020 3:43 pm

An eV is an electron volt. The conversion from eV to joules is: 1 eV = 1.602 × 10-19 J . In particle physics people use something more convenient than the Joule called electron volt (eV) . The reason they use this is that the energies they are measuring in particle collisions are very small and are related to the energies of single particles.

Michelle Nguyen 3F
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Re: eV to Joules (Defining these Units) Question

Postby Michelle Nguyen 3F » Sun Nov 01, 2020 3:58 pm

eV stands for electron volts, and the conversion is 1eV = 1.602*10^-19 J

Natallie K 3B
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Re: eV to Joules (Defining these Units) Question

Postby Natallie K 3B » Sun Nov 01, 2020 5:18 pm

It's another unit used to express energy. The conversion factor is on the formula/constant sheet that we are allowed to use for midterms/finals

Ava_Basileo_2J
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Re: eV to Joules (Defining these Units) Question

Postby Ava_Basileo_2J » Sun Nov 01, 2020 5:35 pm

Thankfully the equation sheet has the conversion.


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