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For an adiabatic compression the quantit...

For an adiabatic compression the quantity pV

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During adiabatic compression, heat is absorbed. So…
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The temperature of a gas rises during an adiabatic compression, although no heat is given to the gas from outside. Why?

One mole of a monatomic ideal gas is taken through the cycle shown in the figure: A to B adiabatic expansion B to C: cooling at constant volume C to D adiabatic compression D to C: heating at constant volume. The pressure and temperature at P_A, P_B etc. T_A , T_B etc. are denoted etc. respectively. Given that T_A = 1000 K, P_B =(2 //3)P_A and P_C = (t //3)P_A Calculate the following quantities. The heat lost by the gas in process B to C (in J)

One mole of a monatomic ideal gas is taken through the cycle shown in the figure: A to B adiabatic expansion B to C: cooling at constant volume C to D adiabatic compression D to C: heating at constant volume. The pressure and temperature at P_A, P_B etc. T_A , T_B etc. are denoted etc. respectively. Given that T_A = 1000 K, P_B =(2 //3)P_A and P_C = (1 //3)P_A Calculate the following quantities. The work done by the gas in process A to B (in J)

Curve in the figure shows an adiabatic compression of an ideal gas from 15m^3 to 12m^3 , followed by an isothermal compression to a final volume of 3.0m^3 . There are 2.0 moles of the gas. Total heat supplied to the gas is equal to: (ln2= 0.693)

Statement-1: Specific heat for adiabatic compression is negative. Statement-2: Specific heat capacity for a gaseous system can have infinite values.

A certain quantity of air is adiabatically compressed so that its pressure increases from 1 atmosphere to 150 atmosphere. If the initial temperature of air is 27^(@)C . Calculate (i) rise in temperature and (ii) the work done of air Y= 1.4).

P-V plts for the gases ( assuming ideal behaviour and similar condition ) for reversible adiabatic compression are given in the figure below : Plots X,Y and Z should correspond to respectively :

P-V plots for three gases (assuming ideal behaviour and similar condition) for reversible adiabatic compression are given in the figure below : Plots X,Y and Z should correspond to respectively :

An ideal gs at pressure P is adiabatically compressed so that its density becomes n times the initial vlaue The final pressure of the gas will be (gamma=(C_(P))/(C_(V)))

Certain perfect gas is found to obey pV^(3//2) = constant during adiabatic process. If such a gas at intial temperature T, is adiabatically compressed to half the initial volume, its final temperature will be

ICSE-INTERNAL ENERGY -SHORT ANSWER QUESTIONS
  1. What is γ ? Obtain the value of γ for (i) monatomic (ii) diatomic an...

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  2. Using first law of thermodynamics show that Q and W are path functions...

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  3. Distinguish between reversible and irreversible processes.

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  4. For an isothermal process

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  5. For an adiabatic compression the quantity pV

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  6. Derive an expression for the work done during adiabatic process.

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  7. Write down the relation for an adiabatic process in terms of (i) P and...

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  8. Show that the adiabatic curve is steeper than the isothermal curve.

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  9. Explain the difference between isobaric and isochoric processes.

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  10. Draw P-V diagrams to show (i) isobaric process and (ii) isochoric proc...

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  11. How will you find the change in internal energy of a system when it me...

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  12. On a phase diagram draw the fusion curve, vaporisation curve and subli...

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  13. A gas has more than one specific heats, whereas a liquid and solid hav...

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  14. The slope of a line in the standard (x,y) coordinate plane is 4. What ...

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  15. The temperature of an ideal gas is increased from 27^(@)C "to" 127^(@)...

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  16. Assertion : The efficiency of a heat engine can never be unity. Reas...

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  17. Draw a Carnot cycle and on the diagram mark the work done by the engin...

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  18. Name the working substance used in (i) Camot engine, (ii) Steam engine...

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  19. Draw the diesel cycle and give the name of the four strokes. Show the ...

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  20. State and explain the second law of thermodynamics.

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