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Classify as open, closed or isolated sys...

Classify as open, closed or isolated system: (1) A cup of coffee placed on a table (2) Water in a beaker is boiled by heating (3) Lead nitrate is heated in a test tube (4) Solid `NH_(4)Cl` is heated in a closed vessel (5) Substances present in a soda-water bottle (6) Mercury enclosed in the thermometer.

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(1) Open system, (2) Oepn system, (3) Open system, (4) Closed system, (5) Closed system, (6) Closed system.
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Calssify the following systems into open, closed or isolated: (i) Living cell (ii) A gas enclosed in a cylinder fitted with a movable piston. The walls of the container and the piston are impermeable and thermally insulated (iii) The substances present in a soda water bottle (iv) the chemicals participated in a chemical reaction occurring in a closed glass container (v) How tea kept in a thermos flask.

The given reaction is carried out in a closed vessel: CaCO_(3)(s)hArr CaO(s)+CO_(2)(g), DeltaH^(0) gt0 . What would be the effect of the following changes on the equilibrium of the reaction if (1) solid CaCO_(3) is added to the reaction system, (2) some amount of CaO is removed from the reaction system, (3) CO_(2)(g) is introduced into the reaction system at constant volume and temperature., (4) temperature is increased, and (5) volume of the reaction vessel is reduced at constant temperature.

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CHHAYA PUBLICATION-CHEMICAL THERMODYNAMICS-QUESTION ANSWER ZONE FOR BOARD EXAMINATION (VERY SHORT ANSWER TYPE)
  1. Classify as open, closed or isolated system: (1) A cup of coffee place...

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  2. A certain amount of a gas is enclosed ina container with permeable an...

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  3. Does the volume of a closed system remain fixed?

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  4. Given an example of a thermodynamic quantity which is not a stable fun...

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  5. A process occurring in an isolated system does not have any effect on ...

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  6. A system participates in the following process: What will be the ...

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  7. If the value of internal energy for 10 g water at a particular tempera...

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  8. In a process A to B to C to D, the heat absorbed by the system in the...

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  9. Why is infinite time required for the completion of an ideal reversibl...

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  10. In a process, if the heat released by the system and work done on the ...

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  11. If the specific heat capacity and molecular mass ofa gas are c(P) and...

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  12. Given an example of a process which is simulataneously isothermal and ...

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  13. At 25^(@)C the standard reaction enthalpy for the reaction AB(3)(g)to(...

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  14. Mention the standard state of sulphur and iodine at 25^(@)C.

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  15. At 25^(@)C, is the standard reaction enthalpy for the reaction 2H(g) +...

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  16. Assuming experimental conditions are the same, compare (DeltaH-DeltaU)...

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  17. What do you mean by the enthalpy of solidification of water at 0^(@)C ...

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  18. Why are spontaneous/natural processes irreversible?

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  19. Give example of two processes where Delta S is zero.

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  20. In which of the following two processes, the change in entropy of the ...

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