How much heat needs to be communicated to melt a 1 kg piece of lead at the melting point?

How much heat needs to be communicated to melt a 1 kg piece of lead at the melting point? The specific heat of fusion of lead is 2.5 * 10 ^ 4 J / kg

decision
Q = λm = 2.5 * 10 ^ 4 * 1 = 2.5 * 10 ^ 4 J

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.