How much heat is needed to melt 100 g of ice at 0°C?

A: 8000 B: 540 C: 7200 D: 100

Q=λm=335000•0.1=33500 J

To find out how much heat is needed to melt 100 g of ice at 0°C, we can use the equation Q = m * Hf, where Q represents the heat energy required, m represents the mass of the substance, and Hf represents the heat of fusion.

The heat of fusion for ice is 334 J/g. So, plugging in the values we have:
Q = 100 g * 334 J/g = 33,400 J.

Therefore, the correct answer is not among the options provided. The correct amount of heat needed to melt 100 g of ice at 0°C is 33,400 J.