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Characteristics of gases



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Q1. Which of the following statement is correct for an ideal gas?

(a) h=u+pv
(b) h=u+RT
(c) Phase
(d) None of the mentioned

Q2. Which of the following statement is true? (c is the specific heat at constant volume)

(a) the equation du=c*dT holds good for an ideal gas for any process
(b) for gases other than ideal ones, the equation holds true for a constant volume process only
(c)
(d)

Q3. Which of the following statement is true? (c is the specific heat at constant volume)

(a) the equation du=c*dT holds good for an ideal gas for any process
(b) for gases other than ideal ones, the equation holds true for a constant volume process only
(c)
(d)

Q4. For an ideal gas, internal energy is a function of temperature only.

(a) true
(b) false
(c) Their pressure variation is proportional to square of the change in temperature
(d)

Q5. At constant temperature, (u being the internal energy)

(a) u change when v or p changes
(b) u does not change when v or p changes
(c) h=f(T)
(d) all of the mentioned

Q6. For real gases,

(a) specific heats vary appreciably with temperature
(b) specific heats vary little with pressure
(c) for an ideal gas c is constant and hence ?u=c*?T
(d) all of the mentioned

Q7. Specific heats are constant for an ideal gas.

(a) true
(b) false
(c) u does not change when t changes
(d) u always remains constant

Q8. An ideal gas is one which obeys the law pv=RT at all pressures and temperatures.

(a) true
(b) false
(c) both of the mentioned
(d) none of the mentioned

Q9. The equation of state of an ideal gas is given by

(a) pV=mRT, here R is characteristic gas constant
(b) pV=nRT, here R is universal gas constant
(c) pV=NKT
(d) all of the mentioned

Q10. Which of the following statement is true?

(a) characteristic gas constant is given by dividing the universal gas constant by the molecular weight
(b) Avogadro?s number (A) = 6.023 * 10^26 molecules/kgmol
(c) Boltzmann constant (K) = 1.38 * 10^-23 J/molecule K
(d) all of the mentioned

Q11. The value of universal gas constant is

(a) 8.2353
(b) 8.3143
(c) 8.5123
(d) none of the mentioned


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1 Answer
479 views

1° C Rise In Temperature Is Equal To A Rise Of

Modified 238 Year Ago

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238 Year Ago

1° C Rise In Temperature Is Equal To A Rise Of

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1 Answer
458 views

In A Closed Flask Of 5 Litres, 1.0 G Of H2 Is Headed From 300 To 600 K. Which Statement Is Not Correct

Modified 238 Year Ago

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458
238 Year Ago

In A Closed Flask Of 5 Litres, 1.0 G Of H2 Is Headed From 300 To 600 K. Which Statement Is Not Correct

0 votes
1 Answer
440 views

Equal Amounts Of Two Gases Of Molecular Weight 4 And 40 Are Mixed. The Pressure Of The Mixture Is 1.1 Atm. The Partial Pressure Of The Light Gas In This Mixture Is

Modified 238 Year Ago

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238 Year Ago

Equal Amounts Of Two Gases Of Molecular Weight 4 And 40 Are Mixed. The Pressure Of The Mixture Is 1.1 Atm. The Partial Pressure Of The Light Gas In This Mixture Is

0 votes
1 Answer
412 views

Assertion : Effusion Rate Of Oxygen Is Smaller Than Nitrogen. Reason : Molecular Size Of Nitrogen Is Smaller Than Oxygen.

Modified 238 Year Ago

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238 Year Ago

Assertion : Effusion Rate Of Oxygen Is Smaller Than Nitrogen. Reason : Molecular Size Of Nitrogen Is Smaller Than Oxygen.

0 votes
1 Answer
405 views

Molecules/ions And Their Magnetic Properties Are Given Below

Modified 238 Year Ago

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238 Year Ago

Molecules/ions And Their Magnetic Properties Are Given Below

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1 Answer
403 views

Assertion : We Air Is Heavier Than Dry Air. Reason : The Density Of A Dry Air Is More Than Density Of Water.

Modified 238 Year Ago

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238 Year Ago

Assertion : We Air Is Heavier Than Dry Air. Reason : The Density Of A Dry Air Is More Than Density Of Water.

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