Recent content by honkydora5

was it that simple? I think I will waste half of my life making mistakes! ;-((( Thanks for your time and help!

thanks for spoting mistake! i missed one zero . uuuufffff.so I am not that bad?? Any chance for help with second one? The specific latent heat of vaporisation of substence is the amount of energy needed to boil the liquid to gas without changing the temperature. And again I got 240J/kg...

By using those calculations i get 5426800.so its not much help is it?

That sounds good to me ,but can you show some calculations?How did you get 6146000 P.S I know that it is basic physics but I am stuck. Thanks for help anyway.

1)Calculate the heat needed to change 2kg of ice at 0 degrees C to steam at 100 degrees C. The attempt at a solution 2x334000=66800J 2x4200x100=840000J 2x2260000=4520000J total=5426800J should be 6120000J somehow 2)An electric kettle produces 3000J of heat every second.It is filled...