A gas undergoes a thermodynamical process but the volume of the gas does not change. What is the nature of this process ?
If a refrigerators door is opened,then we get
Mark the correct statement
A reaction occurs spontaneously if
Energy equivalent to one erg, one joule and one calorie is in the order
Which of the following is true for an adiabatic process
The cooling in refrigerator is due to
One calorie is equal to
The temperature of the system decrease in an
For the cyclic process
Point out the wrong statement in relation to enthalpy
Among them intensive property is
Internal energy does not enclude
Which of the following is not a state function
In thermodynamics which one of the following is not an intensive property
Conditions of standard state used in Thermochemistry is
The bond energy (in kcal mol^-1) of C-C single bond is approximately
Calculate the amount of heat evolved when 500 cm^3 of 0.1 M HCl is mixed with 200 cm^3 of 0.2 M NaOH.
Which of the following is the correct option for free expansion of an ideal gas under adiabatic condition
It is general principle that the less energy a system contains, it is
a pistol filled with 0.04 mol of an ideal gas expands
The process, in which no heat entres or leaves the syatem, is termed as
For an isolated system,
Î”U = 0, then
the vapour pressure of acetone at 20 degree C is 185 torr. when 1.2 g of a non - volatile
The relation between H and U is
In an adiabatic process
In an isothermal process
Hesss law is based on
The temperature of the system decreases in an
Which of the following is an intensive property ?
Internal energy is sum of
If one mole of ammonia and one mole of hydrogen chloride are mixed in a closed container to form ammonium chloride gas, then
The first law of thermodynamics is expressed as
An adiabatic process occurs in
Hesss law is used to calculate
Which of the following is a path function?
standard entropy of x^2, y^2 and xy 3 are 60, 40 and 50 j
the standard enthalpy of formation of NH 3 is - 46.60 kj mol^-1.
The species which by definition has zero standard molar enthalpy of formation at 298 K is
the incorrect expression among the following is
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