[单选题]
An ice cube of mass m at i
7-bycw.*hivq,rkb xb pvm+2 (m2 ;ugkts melting temperature is placed in a mass M of
bu6) pjiw bq)8water at an initial
i) pujqb8w6)btemperature of $20^{\circ}C$. Assume that the specific heat capacity of liquid water is $4\,kJ\,kg\,K^{−1}$ and it has a specific latent heat of fusion of $320\,Jg^p{−1}$.
Assuming that the system is thermally isolated , what is the minimum value of M required for the ice to completely melt?
