NEET Practice Questions (MCQs) with Answers & Solutions

 $2.303 \log \frac{{\mathrm{P}}_2}{{\mathrm{P}}_1}=\frac{∆{\mathrm{H}}_{\mathrm{vap}.}}{\mathrm{R}}\frac{\left[{\mathrm{T}}_2-{\mathrm{T}}_1\right]}{{\mathrm{T}}_1{\mathrm{T}}_2}$ is called Clausius-Clapeyron equation

 $\frac{∆{\mathrm{H}}_{\mathrm{vap}.}}{\mathrm{Boiling} \mathrm{Point}}=88 J mo{l}^{-1}{K}^{-1}$ is called Trouton's rule

Entropy is a measure of unavailable energy, i.e.,

     unavailable energy = entropy x temperature

All of the above

Ca(s) + 1/2 O₂(g) $\to$CaO(s)

CaCO₃(s)$\to$CaO(s) + CO₂(g)

C(s) + O₂(g)$\to$CO₂(g)

N₂(g) + O₂(g)$\to$2NO(g)

59.54 J mol^-1                               

5954 J mol^-1

595.4 J mol^-1                             

320.6 J mol^-1

reversible process                           

cyclic process

isobaric process                               

spontaneous process

T/(2)^2/3                                         

T + 2/(3x0.0821)

T                                                   

T - 3/(2x0.0821)

Expansion of a gas into vacuum

Water flowing downhill

Heat flowing from colder body to a hotter body

Evaporation of water from clothes during drying

decrease of free energy                     

increase of free energy

decrease of entropy                           

increase of enthalpy

Boiling of egg

Combustion of benzene at 127$°$C

Stretching of rubber band

Dissolution of sugar in water

Temperature must be high

Temperature must be zero

Temperature may have any magnitude

Temperature must be low

The reactants are initially mixed.

  A catalyst is added

The system is at equilibrium

The reactants are completely consumed