Closed 6 years ago.
You are watching: How much energy does it take to boil water
What is the lot of energy (J or Wh) essential to boil one litre the tap-water in a continual kettle starting at room temperature (20°C)?
The calculation chin assuming ideal and standard prerequisites would be interesting as well as factoring in the non-purity of tap-water and also a usual kettle power factor.
It is simple. Density of water is $1\;\frac\textg\textml$ together we have 1 kg water.
Now according to the legislations of calorimetry the amount of heat required
$Q = c \cdot m \cdot \left( 100\text ^\circ\textC - T \right) + \Delta h_\textvap \cdot m$
Here$c$ = certain heat volume of water, which is 1 cal/(g °C)$m$ = fixed of water; i.e. 1 kg$T$ = the room temperature in °C
So friend will obtain the lot of power needed (in cal) to boil a litre of water
To gain answer in Joule main point the answer in cal by 4.184 J/cal. And be mindful with units!
improve this price
edited Mar 17 "17 at 20:10
11766 bronze badges
answered Mar 14 "15 at 13:25
Chinmay ChandakChinmay Chandak
56466 silver badges1818 bronze badges
include a comment |
Not the prize you're spring for? Browse various other questions tagged physical-historicsweetsballroom.com water warmth or ask your own question.
Featured ~ above Meta
White powder observed ~ boiling water in electric kettle for plenty of weeks
Determining traditional Gibbs totally free energy for water?
Reuse 20 litre plastic drums because that drinking water?
Burns indigenous boiling water and steam
Minimum lot of water in push cooker
exactly how does cook water influence its hardness?
Is the mean kinetic energy of evaporating water molecule (at room temperature) equivalent to the average kinetic energy of cook water?
hot Network inquiries an ext hot concerns
ridge Exchange Network
site design / logo © 2021 ridge Exchange Inc; user contributions licensed under cc by-sa. Rev2021.9.17.40238
See more: Which Structure Connects The Testes To The Urethra? ? Overview Of The Male Anatomy