Question

How much heat does it take to melt a 0.234 kg ice cube at its melting point?​

Answer 1

The amount of heat transfer required to melt a 0.234 kg ice cube at its melting point is approximately 78 kJ.

Step-by-step explanation:

The amount of heat transfer required to melt a 0.234 kg ice cube at its melting point is given by the equation:

Q = mLf

where Q is the heat transfer, m is the mass of the ice cube, and Lf is the latent heat of fusion. The latent heat of fusion for ice is approximately 334 kJ/kg.

Substituting the values into the equation, we get:

Q = (0.234 kg)(334 kJ/kg) = 78 kJ

Therefore, it takes approximately 78 kJ of heat to melt a 0.234 kg ice cube at its melting point.

Answer 2

Q = M kg* 3.33E5 J / kg = .234 * 3.33E5 = 7.79E4 Joules

As a check (using 80 cal/gm as latent heat of fusion for water)

234 g * 80 cal/gm = 18720 cal

1 cal = 4.19 J

18720 cal * 4.19 J / cal = 7.7E4 J agrees with value found above