19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Entropy of the universe is
G H when S
For the reaction, 2Cl(g) → Cl₂(g), the correct option is (NEET 2020)
Which of the following is a path function?
Which of the following can be used to define the state of a system?
1 mole of an ideal gas expands isothermally reversibly from 2 litre to 4 litre and 3 moles of the same gas expands from 2 litre to x litre and doing same work, what is ‘x’?
A liquid which is confined inside an adiabatic piston is suddenly taken from state 1 to state 2 by a single stage process. If the piston comes to rest at point 2 as shown. Then the enthalpy change for the process will…
Which of the following is a state variable?
Which of the following quantities is not a state function?
Which of the following is not a state function?
Which of the following is not a state function?
Which of the following is not an intensive property?
Closed system can exchange (with surroundings)
Which of the following is an example of open system?
In an isobaric process, when temperature changes from 1T to T , S is equal to
System and surroundings together constitute
The state of a thermodynamic system is represented by
Which of the following macroscopic variable is not measurable?
Thermodynamics is not concerned about____.
Which of the following is true about isolated system?
Which of the following is a state function and also an extensive property?
Which of the following is a state function?
Assertion: In isothermal process, whole of heat energy supplied to the system is converted into internal energy. Reason: According to the first law of thermodynamics U = q - w
Unit of entropy is
In which case change in entropy is negative?