18.0 g of water completely vapourises at 100°C and 1 bar pressure and the enthalpy change in the process is 40.79 kJ . What will be the enthalpy change for vapourising two moles of water under the same conditions? What is the standard enthalpy of vapourisation for water?

18.0 g of water completely vapourises at 100°C and 1 bar pressure and

1.	18.0 g of water completely vapourises at 100°C and 1 bar pressure and the enthalpy change in the process is 40.79 kJ . What will be the enthalpy change for vapourising two moles of water under the same conditions? What is the standard enthalpy of vapourisation for water?
Answer» ount of heat" absorbed or liberated during the chemical REACTION is called enthalpy."Vaporization" is the CONVERSION of liquid into VAPOUR in the presence of heat.18 g of = 1 MOLE of 2 moles of = ?