Mark the correct statement
1. For a chemical reaction to be feasible, ΔG should be zero
2. Entropy is a measure of order in a system
3. For a chemical reaction to be feasible, ΔG should be positive
4. The total energy of an isolated system is constant
Internal energy is an example of [Pb. PMT 2000]
(1) Path function
(2) State function
(3) Both (1) and (2)
(4) None of these
The intensive property among these quantities is
(1) Enthalpy
(2) Mass/volume
(3) Mass
(4) Volume
Which of the following is not a state function?
1. | ΔS | 2. | ΔG |
3. | ΔH | 4. | ΔQ |
Which of the following is true for an adiabatic process [DCE 2002; MP PET 1995, 98, 2004; CPMT 1990; MP PMT 1998, 2002]
1. ΔH = 0
2. ΔW = 0
3. ΔQ = 0
4. ΔV = 0
Which of the following is not a state function
(1) Internal energy
(2) Enthalpy
(3) Work
(4) Entropy
Among them, intensive property is [AFMC 2004]
1. Mass
2. Volume
3. Surface tension
4. Enthalpy
The first law of thermodynamics is a statement of:
1. Conservation of mass
2. Conservation of linear momentum
3. Conservation of energy
4. Conservation of angular momentum
A mixture of two moles of carbon monoxide and one mole of oxygen, in a closed vessel is ignited to convert the carbon monoxide to carbon dioxide. If ΔH is the enthalpy change and ΔE is the change in internal energy, then
(1) ΔH > ΔE
(2) ΔH < ΔE
(3) ΔH = ΔE
(4) The relationship depends on the capacity of the vessel
The relation between ΔE and ΔH is [MP PET 1992; MP PMT 1996; MP PET/PMT 1998]
1.
2.
3.
4.