For the following problems , use these values , heat of fusion , 105J/g at the melting point of ethyl alcohol (CH3CH2OH) of −114 OC : heat of vaporization , 854 J/g at boiling point of 78.4OC. the specific heat of liquid ethyl alcohol is 2.26 J/(g. OC)
1.1 How many kilojoules are required to melt 285 g of solid ethyl alcohol?
1.2 What mass of liquid ethyl alcohol can be vaporized at the boiling point by 10.7 kJ?
1.3 If 3.70 kJ of heat energy is added to 150 g of liquid ethyl alcohol , how many Celsius degrees
Does the temperature rise?
1.4 How many mekajoules (MJ) are required to change 15.00 g of solid ethyl alcohol at −114 OC
to vapor at 78.4OC ?