HARD
11th CBSE
IMPORTANT
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A reversible cyclic process for an ideal gas is shown below. Here, P, V and T are pressure, volume and temperature respectively. The thermodynamic parameters of q, w, H and U are heat, work, enthalpy and internal energy respectively

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The correct option(s) is (are)

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Important Questions on Thermodynamics

HARD
11th CBSE
IMPORTANT

For a reaction AP, the plots of [A] and [B]  with time at temperatures T1and T2 are given below:

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If T2 >T1, the correct statement(s) is (are) (Assume H° and S° are independent of temperature and ratio of lnK at T1 to lnK at T2 is greater than T2T1. Here, H, S, G and K are enthalpy, entropy, Gibbs energy and equilibrium constant respectively)

HARD
11th CBSE
IMPORTANT
The number of intensive properties among the following is Temperature, Pressure, Volume, Heat capacity, Density, PH of a solution, EMF of a cell, Entropy, Free energy, Enthalpy, Surface tension, Viscosity, Boiling point.
HARD
11th CBSE
IMPORTANT

The number of properties which are state functions among the following is

Pressure, Volume, Temperature, Heat, Work, Entropy, Enthalpy, Free energy, Internal energy.

HARD
11th CBSE
IMPORTANT
A gas expands against a constant external pressure so that the work done is 607.8 J. The work done in litre atmosphere is
HARD
11th CBSE
IMPORTANT
The number of moles of an ideal gas that should be taken in a closed vessel of 30 L capacity at a temperature of  27C so that the pressure exerted by the gas on the walls of the container is 4.1 atmosphere is
HARD
11th CBSE
IMPORTANT
If for a particular reaction, the difference in the heat evolved when the reaction is carried out at constant pressure and that at constant volume at  27C  is nearly 5 KJ mol-1, then the difference in the number of moles of gaseous reactants and products is
HARD
11th CBSE
IMPORTANT
The ratio of Cp value of a triatomic gas to the Cv value of a monatomic gas is
MEDIUM
11th CBSE
IMPORTANT
The enthalpy of neutralisation of 0.4 M H2SO4 will be how many times the enthalpy of neutralisation of  0.1 MHCl ?