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
In order to decompose 9 g water 142.5 kJ heat is required. Hence, the enthalpy of formation of water is
Three moles of an ideal gas expanded spontaneously into vacuum. The work done will be
How many joules of heat are absorbed when 70.0 g of water is completely vaporised at its boiling point ?
The heat of combustion of carbon to CO2 is - 393.5 kJ/mol. The heat released upon formation of 35.2 g of CO2 from carbon and oxyge..
Which of the following are not state functions
A gas undergoes a thermodynamical process but the volume of the gas does not change. What is the nature of this process ?
Which of the following units represent the largest amount of energy
Which of the following is true for an adiabatic process
Mark the correct statement
If a refrigerators door is opened,then we get
Energy equivalent to one erg, one joule and one calorie is in the order
A reaction occurs spontaneously if
One calorie is equal to
The cooling in refrigerator is due to
The temperature of the system decrease in an
For the cyclic process
Among them intensive property is
Point out the wrong statement in relation to enthalpy
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
a pistol filled with 0.04 mol of an ideal gas expands
It is general principle that the less energy a system contains, it is
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
Hesss law is based on
Which of the following is an intensive property ?
In an isothermal process
The temperature of the system decreases in an
Internal energy is sum of
The first law of thermodynamics is expressed as
If one mole of ammonia and one mole of hydrogen chloride are mixed in a closed container to form ammonium chloride gas, then
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