States of Matter · JEE Main previous year questions

2004 2 questions

1. Q1622004 · 24 Apr 2004 · Shift 1

   An ideal gas expands in volume from $1\times 10^{-3}{\mathrm{m}}^3$ to $1\times 10^{-2}{\mathrm{m}}^3$ at 300 K against a constant pressure of $1\times 10^5\mathrm{N}{\mathrm{m}}^{-2}$. The work done is :

   1. A.-900 J
   2. B.900 kJ
   3. C.270 kJ
   4. D.-900 kJ
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   Answer: A

2. Q2142004 · 24 Apr 2004 · Shift 1

   In Van der Waals equation of state of the gas law, the constant ‘b’ is a measure of

   1. A.intermolecular repulsions
   2. B.intermolecular collisions per unit volume
   3. C.Volume occupied by the molecules
   4. D.intermolecular attraction
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   Answer: C