posted by natash on .
HOw much energy is required to heat 36.0g H2O from a liquid at 65C to a gas at 115C? The following physical data may be uselful.
C solid= 2.09
T melting=0 C
T boiling=100 C
The answers about 87.7 kJ
However I'm not sure how you get this,
so H=H heating liquid+H vap+H heating gas. I'm not getting the same answer
q for liquid is mass x specific heat x delta T. or for gas is mass x specific hat gas x delta T.
q for phas change is mass x delta Hvap or delta H fusion
THEN add all.