Change in enthalpy for reaction,
2H2O2(l) 2H2O(l) + O2(g)
if the heat of formation of H2O2(l) and H2O(l) are -188 and -286 kJ/mol respectively is
(a) -196 kJ/mol (b) + 196 kJ/mol
(c) +948 kJ/mol (d) -948 kJ/mol
If 50 calorie are added to a system and system does work of 30 calorie on surroundings, the change in internal energy of system is:
(a) 20 cal (b) 50 cal
(c) 40 cal (d) 30 cal
Which statements are correct?
(a) is called Clausius-Clapeyron equation
(b) is called Trouton's rule
(c) Entropy is a measure of unavailable energy, i.e.,
unavailable energy = entropy x temperature
(d) All of the above
Consider the reaction
N2(g) + 3H2(g)2NH3(g) carried out at constant temperature and pressure. If H and E are enthalpy change and internal energy change respectively, which of the following expression is True?
What will be the standard enthalpy of reaction for the following reaction using the listed enthalpies of reaction:-
3Co(s) + 2O2(g)Co3O4(s); =?
2Co(s) + O2(g) 2CoO(s) = -475.8 KJ
6CoO(s) + O2(g) 2Co3O4(s) = -355.0 KJ
(1) -891.2 KJ
(2) -120.8 KJ
(3) 891.2 KJ
(4) -830.8 KJ