DrLazy
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How much energy does it take to melt 2 kg of ice? (Refer to table of
constants for water.)
1 mol
O A. 2 kg > 1000 g/kg *
18.02 g
X
x 40.65 kJ/mol = 4512 kJ
1 mol
B. 2 kg x 1000 g/kg *
*(-285.83 kJ)/mol = -31,724 kJ
18.02 g
O C. 2 kg > 1000 g/kg x
1 mol
18.02 g
x 6.03 kJ/mol = 669 kJ
O D. 2 kg > 1000 g/kg *
1 mol
18.02 g
x 4.186 kJ/mol = 465 kJ

How much energy does it take to melt 2 kg of ice Refer to table of constants for water 1 mol O A 2 kg gt 1000 gkg 1802 g X x 4065 kJmol 4512 kJ 1 mol B 2 kg x 1 class=

Respuesta :

The energy that it takes to melt 2 kg of ice is; (2 kg * 1000 g/kg) * 1 mol/18.02 g * 6.03 kJ/mol = 669 kJ

What is the energy required?

We are given;

Mass of ice; m = 2 kg

Now, from tables showing constants for ice, we see that;

Molar heat of fusion for ice; Δ_fus.H = 6.03 kJ/mol at 0°C.

Molar mass of Ice which is water is; 18.02 g/mol

Formula to get the energy is;

E = (m/M) * Δ_fus.H

E = (2 kg * 1000 g/kg) * 1 mol/18.02 g * 6.03 kJ/mol = 669 kJ

Read more about enthalpy energy at; https://brainly.com/question/25141046

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