CHE201 Final Term Objective 2024 by Sulman Ali

OBJCTIVES OF CURRENT PAPER · CHE201 - Physical Chemistry · Final-Term File 2024 By · SULMAN ALI (BS-ZOOLOGY)

•  Reaction of chlorine with methane can not oocur in dark
•  Spectrophotometry wly topic m s b 3 s 4 McQ thy
•  Values given to the thermodynamic property of an equilibrium state of thermodynamic system is called State function.
•  A key property in thermodynamic is Temperature.
•  The quantitative study of heat changes is Thermochemistry.
•  If we bring any change at equilibrium the system compensate for change this is called Le Chateliers Principle.
•  The system in which heat change is negative is endothermic.
•  Freezing point is a cogitative property.
•  The amount of heat needed to increase the temperature of one gram of substance by degree is specific heat capacity.
•  Two systems that are each found to be in thermal equilibrium with a third system will be found to be in thermal equilibrium with each other. This generalization from experience is the Zeroth law of thermodynamics
•  Entropy of perfect crystalline substance is zero at absolute zero.
•  A large number of experiments have determined that 4 variables are sufficient to define the physical condition of a gas.
•  When ∆G is negative, the forward reaction is spontaneous.
•  Ideal gas obeys Roults law.
•  Oxidation of gold is example of (non-spontanious)
•  Mechanical Equilibrium: No unbalanced forces act on or within the system; hence the system undergoes no acceleration, and there is no turbulence within the system.

System__ Thermodynamic

•  Charles’ law is obeyed most accurately in the limit of zero pressure
•  van der Waals in (1873) modified the ideal-gas equation
•  The change in enthalpy is then equal to the heat transferred at constant (pressure)
•  Entropy of a perfect crystalline substance is (zero) at absolute zero
•  Throttling is example of (irreversible process)
•  A large number of experiment have determined that__4__variables are sufficient to define the physical condition of a gas?
•  Non-zero volumes of gas particles (repulsive effect)
•  Quantative study of heat change is called thermochemistry
•  aik water ki koi value pochi thi ans *41*tha
•  Principle which states that any change to a system at equilibrium will adjust to compensate for that change____Le Châtelier's
•  Manfred Eigen (Germany) pioneered when, in the early 1960's, he measured the rate constant of what was then the---- reaction ever observed.___Fastest
•  oxidation of gold is ? non spontaneous process
•  carbonate and phasphate are insoluble
•  The interactions between the solute particles and the solvent molecules is called___Solvation
•  The amount of moles of solute per kilogram of the solvent____Molarity
•  Activity is more accurate in more ---- solutions___concentrated
•  Determines the real chemical potential for a real solution rather than an ideal__Activity
•  If delta G is positive then the reaction will be....(non_spontaneous)
•  If K< 1 then it favors ..... (reactants)

(Solvation )

•  Continuous Flow is a type of assay used for determining initial value and_____. (Inhibition values)
•  A first-order reaction is a reaction that proceeds at a rate that depends on_____(One reactant ) concentration
•  Boiling point of Ethanol is ______. (78.5°C)
•  The fan in a 'frost free' home freezer moves air around inside the freezer to____. (Sublimate )
•  (Fog and mist) are examples of colloidal liquid in a gas.
•  ethanol will start to boil at 78.4 °C
•  zero order reactions/kinetics, the rate of a reaction does not depend on the ...(substrate
•  The activation energy is the threshold energy that the reactant(s) ...(must acquire before reaching the transition state)
•  mass/volume percentage are...( relative concentration unit)
•  The epitome of intermolecular forces in solution is the miracle of solubility, because when a matter precipitates it no longer interacts with the ......(solvent.) (System )
•  from the stoichiometry of the reaction equation the order should not determined
•  In zero order reactions/kinetics, the rate of a reaction does not depend on the substrate
•  Freezing point is _ cogitative_ property
•  The amount of moles of solute per liter of the solution is__Molarity
•  The formation of double stranded DNA from two complementary strands, can be described using__2nd order kinetics
•  The rate at which the reagents are first brought together is_initial rate of reaction
•  Boiling point of pure ethanol is 78.5
•  Measurement of relative amount of products and reactant present at a given time is called? Reaction kinetics

Chatelier's principle

•  Water is a good solvent due to? Its ability to dissolve a wide range of substances
•  The interaction between solute particle and solvent molecule is called? Solvation
•  In zero order reaction the rate of reaction does not depend? On the concentration of the reactants
•  Freezing point is a ……...property ? heat
•  A key property in thermodynamics is...….? temperature
•  Two thermodynamics system in equilibrium have same ……..? Temperature
•  For a system in mechanical equilibrium, the pressure throughout the system is. Uniform
•  A measurement of the relative amounts of products and reactants present in a reaction at a given time is called.__Reaction quotient

Solvation

values

•  A first-order reaction is a reaction that proceeds at a rate that depends on. One reactant
•  The rate at which the reagents are first bought together is called___. initial rate
•  The relaxation method is used to determine the rate of reaction of___.return to equilibrium.
•  A spectometer us a device is used to___. the amount of photons (the intensity of light)
•  A first order reaction is s reaction depends on___. linearly on only one reactant
•  Once started chain reaction continue until the__.
•  reactants are exhausted
•  The rate constant are calculated by integrated rate laws from initial concentrate and__. time of measurement.
•  length of half life will be constant, independent of concentration.
•  Another way to see it is that the half life of a first order reaction is independent of its initial concentration.
•  for 1st and 2nnd order reaction the graph will be___decrease to zero with time
•  The slow step is mechanisms determines the__. rate of a reaction
•  The number of particles involved in an elementary steps is called__.molecularity
•  if ∆G is negative the reaction will be__.spontaneous
•  The freezing point of solution is directly proportional to the___of the solute. molality
•  In____van der walls modified the ideal Gass.1873
•  __are liquid or solid with a Gass dispersed into them. Foams