how much heat is necessary to change 30g of ice at -20 degrees celcius into water at 20 degree celcius?how much heat in necessary to change 30g of water to 10 degree celcius into water at 80 degree celcius?how much heat is necessary to change 30g of water at 30 degree celcius into steam at 100 degree celcius?What happens to a sample of water when it is heated between 4 degree celcius and 100 degree celcius?
