# Question #65b8b

Apr 18, 2017

$168 , 000 J$ or $168 k J$

#### Explanation:

specific latent heat of fusion: the amount of energy required to heat 1kg of a solid to a liquid or 1kg of a liquid to a solid, without changing the object's temperature.

this is denoted as $L$.

the equation relating energy, mass, and specific latent heat of fusion is $E = m L$.

note: $E$ is in joules, $m$ in kilograms and $L$ in J/kg.

information given in question:
$m = 500 g = 0.5 k g$

the specific latent heat of ice is $336 , 000$J/kg.

using this, $E = 0.5$kg$\cdot 336 , 000$J/kg
$= 168 , 000 J$
or $168 k J$