Correct Answer: Option B

Explanation

The heat required to convert ice at 0°C to water at the same temperature is given by the formula: Q = m × L,

where m is the mass of the ice, and L is the specific latent heat of ice.

Substituting the given values, we get Q = 20 g × 336 Jg\(^{-1}\) = 6.72 × 10\(^3\) J.

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