Advertisements
Advertisements
Question
If the enthalpy of vaporisation of water at 100oC is 186.5 J.mol-1, the entropy of vaporization will be_____________ .
(a) 4.0 J . K-1. mol-1
(b) 3.0 J . K-l. mol-1
(c) 1.5 J - K-1. mol-1
(d) 0.5 J . K-l. mol-1
Solution
0.5 J . K-l. mol-1
APPEARS IN
RELATED QUESTIONS
How is enthalpy of sublimation related to enthalpy of fusion and enthalpy of vaporization?
Define the Enthalpy of fusion
Define the Enthalpy of atomization
For a chemical reaction dS=0.035 kJ/k and dH=20kJ. At what temperature does the reaction turn nonspontaneous?
A system absorbs 640 J heat and does work of 260 J, the change in internal energy of the system will be
(a) +380J
(b) -380J
(c) +900J
(d) -900J
Define the term ‘enthalpy’.
What will happen to the internal energy if work is done by the system?
Define Enthalpy of vaporization
A system absorbs 6 kJ of heat and does 1.5 kJ of work on its surroundings. The change in internal energy is __________.