You take an ice cube (mass = 18g) from the freezer (t=-10°c) and place it on the table. later that day, you notice a puddle of water on the table that has reached ambient room temperature (20°c). how much heat must have been absorbed to make this happen?

The equation to be used to calculate the heat absorbed when solid melts is the enthalpy of melting. It is represented as H = mCpT where H is the heat released after phase change, m is the mass of the substance, Cp is the specific heat capacity of the substance and T is the change in temperature.

H = mCpT

H = (18g/1000g/kg)(4.184kJ/kg-K)(293-(-263))

H = 41.87kJ

no, the red giant is the hottest with 2.00.000.000 degrees celsius. while the white dwarf only 25,000 degrees celsius.