Chemistry Test 102

Out of the following which one is not a state function?

The difference between heat of reaction at constant pressure (ΔH) and at constant volume (ΔE) for the reaction :

C_(s) + 1/2 O_2(g) → CO_(g) is :-

(Assume R = 0.002 Kcal K^–1 mol^–1 and temperature = T K)

For complete combustion of ethanol,

C₂H₅OH(ℓ) + 3O₂(g) → 2CO₂(g) + 3H₂O(ℓ),

the amount of heat produced as measured in bomb calorimeter, is 1364.47 kJ mol^–1 at 25°C. Assuming ideality the Enthalpy of combustion, Δ_cH, for the reaction will be :-

A system absorbs 600 J of heat and does 250 J of work. The change in internal energy would be :

The enthalpy change for transition of liquid water to steam is 3.73 KJ mol^–1 at 373 K. Find ΔS in J/mol K :-

If value of ΔG° = 0, then :

For a certain reaction the change in enthalpy and change in entropy are 40.63 kJ mol^–1 and 100 JK^–1. What is the value of ΔG at 27°C and indicate whether the reaction is possible or not ?

Consider the following reaction :

Sign of ΔH, ΔS & ΔG for the reaction would be?

Standard enthalpies of formation of O₃, CO₂, NH₃ and HI are 142.2, – 393.2, – 46.2 and + 25.9 kJ mol^–1 respectively. The order of their increasing stabilities will be :-

The heat of neutralization of HCl by NaOH is –55.9 KJ/ mol. If the heat of neutralization of HCN by NaOH is – 12.1 KJ/mol. The heat of dissociation of HCN is