How much energy is needed to melt 25.4 grams of l2

0.7824 KJ

Explanation:

Given data:

Mass of iodine = 25.4 g

Amount of heat required to melt = ?

Solution:

The heat of fusion of iodine is 7.824 Kj /mol

Number of moles of iodine = 25.4 g/ 254 g/mol

Number of moles of iodine = 0.1 mol

The amount of heat required to melt one mole of iodine is 7.824 Kj /mol

For 0.1 mol;

7.824 Kj /mol × 0.1 mol

0.7824 KJ

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sorry i was late, but i don't know what assignment your talking about, i'm in flvs as well, im in earth space science. but u are behind pace bc every class should be in the 3's or 4'