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question_answer1)
Internal energy of an ideal gas depends on
A)
Volume done
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B)
Temperature done
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C)
Pressure done
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D)
None of these done
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question_answer2)
Any series of operations so carried out that at the end, the system is back to its initial state is called
A)
Boyle's cycle done
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B)
Reversible process done
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C)
Adiabatic process done
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D)
Cyclic process done
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question_answer3)
One calorie is equal to [CPMT 1988]
A)
0.4184 Joule done
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B)
4.184 Joule done
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C)
41.84 Joule done
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D)
418.4 Joule done
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question_answer4)
The total internal energy change for a reversible isothermal cycles is
A)
Always 100 calories per degree done
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B)
Always negative done
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C)
0 done
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D)
Always positive done
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question_answer5)
A well stoppered thermos flask contains some ice cubes. This is an example of a [AIIMS 1992]
A)
Closed system done
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B)
Open system done
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C)
Isolated system done
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D)
Non-thermodynamic system done
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question_answer6)
Identify the intensive quantity from the following [IIT JEE 1993]
A)
Enthalpy and temperature done
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B)
Volume and temperature done
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C)
Enthalpy and volume done
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D)
Temperature and refractive index done
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question_answer7)
Which of the following units represents the largest amount of energy [CPMT 1989; MP PET 2000]
A)
Electron volt done
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B)
Erg done
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C)
Joule done
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D)
Calorie done
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question_answer8)
Energy equivalent to one erg, one joule and one calorie is in the order [NCERT 1980; CPMT 1997]
A)
\[1\,erg\,>\,1\,joule\,>\,1\,calorie\] done
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B)
\[1\,erg\,>\,1\,calorie\,>\,1\,joule\] done
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C)
\[1\,calorie\,>\,1\,joule\,>\,1\,erg\] done
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D)
\[1\,joule\,>\,1\,calorie\,>\,1\,erg\] done
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question_answer9)
Heat produced in calories by the combustion of one gram of carbon is called
A)
Heat of combustion of carbon done
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B)
Heat of formation of carbon done
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C)
Calorific value of carbon done
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D)
Heat of production of carbon done
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question_answer10)
Conditions of standard state used in thermochemistry is
A)
\[{{0}^{o}}C\] and 1 atm done
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B)
\[{{20}^{o}}C\] and 1 atm done
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C)
\[{{25}^{o}}C\] and 1 atm done
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D)
\[0\,K\] and 1 atm done
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question_answer11)
The temperature of the system decreases in an [KCET 2005]
A)
Adiabatic compression done
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B)
Isothermal compression done
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C)
Isothermal expansion done
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D)
Adiabatic expansion done
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question_answer12)
For the isothermal expansion of an ideal gas
A)
E and H increases done
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B)
E increases but H decreases done
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C)
H increases but E decreases done
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D)
E and H are unaltered done
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question_answer13)
If a refrigerator's door is opened, then we get [CPMT 1980]
A)
Room heated done
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B)
Room cooled done
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C)
More amount of heat is passed out done
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D)
No effect on room done
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question_answer14)
The cooling in refrigerator is due to [KCET 2005]
A)
Reaction of the refrigerator gas done
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B)
Expansion of ice done
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C)
The expansion of the gas in the refrigerator done
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D)
The work of the compressor done
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question_answer15)
Point out the wrong statement in relation to enthalpy
A)
It is a state function done
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B)
It is an intensive property done
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C)
It is independent of the path followed for the change done
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D)
Its value depends upon the amount of substance in the system done
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question_answer16)
Which of the following is zero for an isochoric process
A)
\[dP\] done
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B)
\[dV\] done
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C)
\[dT\] done
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D)
\[dE\] done
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question_answer17)
Mark the correct statement [MP PET 1997]
A)
For a chemical reaction to be feasible, \[\Delta G\] should be zero done
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B)
Entropy is a measure of order in a system done
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C)
For a chemical reaction to be feasible, \[\Delta G\] should be positive done
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D)
The total energy of an isolated system is constant done
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question_answer18)
In an isochoric process the increase in internal energy is [MP PMT 1997]
A)
Equal to the heat absorbed done
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B)
Equal to the heat evolved done
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C)
Equal to the work done done
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D)
Equal to the sum of the heat absorbed and work done done
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question_answer19)
It is general principle that the less energy a system contains, it is [MH CET 1999]
A)
Less stable done
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B)
More stable done
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C)
Unstable done
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D)
More unstable done
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question_answer20)
Internal energy is an example of [Pb. PMT 2000]
A)
Path function done
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B)
State function done
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C)
Both A and B done
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D)
None of these done
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question_answer21)
The process, in which no heat enters or leaves the system, is termed as [Pb. PMT 1999; Kerala (Med.) 2002; J & K 2005]
A)
Isochoric done
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B)
Isobaric done
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C)
Isothermal done
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D)
Adiabatic done
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question_answer22)
The intensive property among these quantities is [KCET 2002]
A)
Enthalpy done
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B)
Mass/volume done
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C)
Mass done
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D)
Volume done
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question_answer23)
In thermodynamics which one of the following is not an intensive property [Kerala (Med.) 2002]
A)
Pressure done
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B)
Density done
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C)
Volume done
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D)
Temperature done
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question_answer24)
If in a container neither mass and nor heat exchange occurs then it constitutes a [MP PMT 1993; AFMC 2003]
A)
Closed system done
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B)
Open system done
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C)
Isolated system done
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D)
Imaginary system done
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question_answer25)
Which of the following is not a state function [DCE 2002]
A)
\[\Delta S\] done
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B)
\[\Delta G\] done
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C)
\[\Delta H\] done
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D)
\[\Delta Q\] done
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question_answer26)
Which of the following is true for an adiabatic process [DCE 2002; MP PET 1995, 98, 2004; CPMT 1990; MP PMT 1998, 2002]
A)
\[\Delta H=0\] done
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B)
\[\Delta W=0\] done
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C)
\[\Delta Q=0\] done
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D)
\[\Delta V=0\] done
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question_answer27)
Which of the following is not a state function [MH CET 2004; AIIMS 2001]
A)
Internal energy done
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B)
Enthalpy done
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C)
Work done
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D)
Entropy done
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question_answer28)
Among them intensive property is [AFMC 2004]
A)
Mass done
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B)
Volume done
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C)
Surface tension done
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D)
Enthalpy done
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