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unit of energy

Posted: Thu Jul 04, 2019 1:47 pm
by George_Zhu
keV is the unit of what?

Re: unit of energy

Posted: Thu Jul 04, 2019 3:57 pm
by David Zhang 1B
It's a unit of energy. In Joules, it's about 1.602x10-19 J.

Re: unit of energy

Posted: Thu Oct 17, 2019 3:46 pm
by Norman Dis4C
I got tricked by the unit as well... There is one question on the textbook that requires you to convert Kev to Joule before calculation.

Re: unit of energy

Posted: Thu Oct 17, 2019 3:49 pm
by Ayushi2011
It is a unit of energy. 1keV = 1.602 * 10^-16 J. Normally an eV = 1.602 *n10^-19 J but since this is Kilo electron volt, the power to 10 is raised to -16.

Re: unit of energy

Posted: Thu Oct 17, 2019 10:44 pm
by Matthew ILG 1L
I know the problem you're referring to. Its 1.B.5. You have to convert the 140.511keV to eV by multiplying it by 10^3, and then multiply the eV by 1.6022x10^-19J to find the J.

Re: unit of energy

Posted: Thu Oct 17, 2019 10:52 pm
by 105335337
keV is an interesting unit. 1 keV is about 1.602x10-19 J.

Re: unit of energy

Posted: Sun Oct 20, 2019 2:09 pm
by Presley Gao 2C
keV is the abbreviation for kiloelectron volts, a unit of energy equivalent to the kinetic energy gained by an electron falling through a potential of 1 volt.

Re: unit of energy

Posted: Wed Oct 23, 2019 1:42 am
by Donna Nguyen 2L
keV is the abbreviation for kiloelectron volts, a unit of energy. This is equal to 1000 eV (electron volts). 1 eV is equal to 1.602*10^-19 J, which is also a constant we have seen before for energy.