Boyle's law is applicable in :

(1) isobaric process

(2) isochoric process

(3) isothermal process

(4) adiabatic process

Subtopic:  Gas Laws |
 91%
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The correct value of the gas constant 'R' is close to 

(a) 0.082 L atm K

(b) 0.082 L atm K-1 mol-1

(c) 0.082 L atm-1 K mol-1

(d) 0.082 L-1 atm-1 K mol

Subtopic:  Ideal Gas Law |
 89%
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The number of molecules present in 1 mL of gas or vapour at STP is:

(1) called Loschmidt's number

(2) equal to 2.617 x 1019 per mL

(3) both (a) and (b)

(4) none of the above

Subtopic:  Gas Laws |
 87%
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600 cc of a gas at a pressure of 750 mm is compressed to 500 cc. Taking the temperature to remain constant, the increase in pressure is                                           

(a) 150 mm                       (b) 250 mm

(c) 350 mm                       (d) 450 mm

Subtopic:  Gas Laws |
 78%
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An ideal gas expands according to PV=constant. On expansion, the temperature of gas:

(1) will rise

(2) will drop

(3) will remain constant

(4) cannot be determined because the external pressure is not known

Subtopic:  Gas Laws |
 76%
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The compressibility of a gas is less than unity at STP. Therefore:

(1) Vm > 22.4 litre                           

(2) Vm < 22.4 litre

(3) Vm = 22.4 litre                           

(4) Vm = 44.8 litre

Subtopic:  Compressibility Factor |
 74%
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The numerical value of Cp-Cv for one mole of the ideal gas is equal to:

1. R             

2. R/M

3. M/R         

4. None of the above

Subtopic:  Kinetic Theory of Gas |
 81%
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In which case is the rate of diffusion highest if all are present in the same container at the same temperature:

1. 4 g H2

2. 32 g O2

3. 22 g CO2

4. 56 g N2

Subtopic:  Graham's Law |
 73%
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Partial pressure of Hydrogen in Flask containing 2 gm of H2 and 32 gm of SO2 is 

1. 1/16 of total pressure

2. 1/2 of total pressure

3. 2/3 of total pressure

4. 1/8 of total pressure

Subtopic:  Ideal Gas Law |
 77%
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At high pressure, the compressibility factor 'Z' is equal to -

1.  Unity

2. 1-PbRT
3. 1+PbRT

4.  Zero

Subtopic:  Compressibility Factor | van der Waal’s Correction |
 73%
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