In 1 kilogram of pure water, the mass of hydrogen atoms is approximately 112 grams, or 0.112 kilograms. What is the energy equivalent of this mass in joules?.

Respuesta :

The question is using the famous equation by Einstein: E=mc²!

the energy in joules is the E from the equation! So we need to substitute m (0.112 kg) like this:

E=0.112*(300 000 000)[tex] x^{2} [/tex] (approximately)

which is 10080000000000000 in  Kg*m²/s²
or  10080000000000000 joules!

we can change it to gigajoules:
10080000
or terajoules: 1008!
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