Which of the following is a path function?.
Internal energy
Enthalpy
Work
Entropy
Thermodynamically the most stable form of carbon is
diamond
graphite
fullerenes
coal
In _______ process, work is done at the expense of internal energy process.
isothermal
isochoric
adiabatic
isobaric
Which of the following is not an endothermic reaction?
Dehydrogenation
Ethane to ethene
Combustion of propane
Change of chlorine molecule into chlorine atoms
One mole of an ideal gas is initially at 0o C and 1 atm pressure. If it absorbs 1000 cal heat during a reversible isothermal expansion, what will be its final volume?
102.5L
242.5L
22.4L
121.25L
Which of the given properties depends on the manner in which a change is brought about? i. ΔE ii. q iii.w
ΔE only
q and ΔE
q and w
w only
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
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
Which of the following is an intensive property?
Temperature
Viscosity
Surface tension
All of these
Which of the following is always negative for exothermic reaction?
ΔH
ΔS
ΔG
None of these
