29. A solid of mass \( m \) is initially at temperature \( \Delta T \) helow its melting point. The solid has specific heat capacity \( c \) and specific latent heat of fusion L. How much thermal energy must be transferred to the solid in order to melt it completely?
A. \( m L+m c \)
B. \( m c+m L \Delta T \)
C. \( m c \Delta T+L \Delta T \)
D. \( m c \Delta T+m L \)
30. A The temperature of an object is \( -153^{\circ} \mathrm{C} \). Its temperature is raised to \( 273^{\circ} \mathrm{C} \). What is the