Which of the following is the correct option for free expansion of an ideal gas under adiabatic condition?
q = 0, ΔT < 0, w ≠ 0
q = 0, ΔT ≠ 0, w = 0
q ≠ 0, ΔT < 0, w = 0
q =0, ΔT = 0, w = 0
Which of the following is always negative for exothermic reaction?
ΔH
ΔS
ΔG
None of these
If W is the amount of work done by the system and q is the amount of heat supplied to the system, identify the type of the system
isolated system
closed system
open system
system with thermally conducting walls
Minimum work is obtained when 1 kg of ____ gas expanded under 500 kPa to 200 kPa pressure at 0oC.
chlorine
oxygen
nitrogen
methane
The temperature of the system decreases in an
adiabatic compression
isothermal compression
isothermal expansion
adiabatic expansion
For an endothermic reaction, energy of activation is Ea and enthalpy of the reaction is ΔH (both of these in KJ/mol). Minimum value of Ea will be
equal to zero
less than ΔH
equal to ΔH
more than ΔH
Which is correct for an endothermic reaction?
ΔH is positive
ΔH is negative
ΔE is negative
ΔH = zero
Which of the following is a path function?.
Internal energy
Enthalpy
Work
Entropy
Which equation is correct for adiabatic process?
Q = + W
ΔQ = 0
ΔE= Q
p + Δ V = 0
Which is included in thermodynamic equilibrium from the following?
Pressure equilibrium
Chemical equilibrium
Thermo equilibrium
All of these
