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Chemistry in daily life Bio molecules Polymers Environmental chemistry Nitrogenous compound Aldehyde and ketone Alcohol and phenol Halo alkane Hydrocarbon Basic concept of organic chemistry Coordination chemistry d&f block element p-block element part 3 p – block element part 2 p-block element part 1 s-block element Hydrogen Principal of extraction of metal Surface chemistry Chemical kinetics Electro chemistry Solution Chemical equilibrium Thermodynamics State of matter Chemical bonding Classification of element Atomic structure Basic concept of chemistry
  • Spontaneity of a chemical reaction is decided by the negative change in :
    Entropy
    Free energy
    Enthalpy
    Internal energy
  • Heat exhange at constant temperature and constant pressure in a chemical process is called :
    Entropy
    Free energy
    Enthalpy
    Internal energy
  • Hess law is an application of :
    First law of thermodynamics
    Second law of thermodynamics
    Entropy change
    Free energy change
  • In the adiabatic expansion of an ideal gas :
    E= 0
    w = 0
    q = 0
    dV=0
  • In the isothermal process of an ideal gas :
    E= 0
    w = 0
    dV = 0
    q = 0
  • Free energy change for a reversible process at equlibrium is :
    Less than zero
    More than zero
    equal to zero
    None of the above
  • For a reaction that has equal activation energies for a forward and backward reaction
    Zero order reaction
    H= 0
    S = 0
    None of the above
  • In adiabatic expansion of an ideal gas always :
    W = 0
    H = 0
    q = 0
    Temperature increases
  • The relation between Gibbs free energy G,enthaply H, and entropy S is:
    G = S - T
    H = G - TS
    G = H + TS
    G = H - TS
  • Heat of neutralization will be maximum for :
    NH4OH and CH3 COOH
    KOH and HCl
    KOH and CH3COOH
    NH4OH and HCl