AP PGECET 2017 Computer Science and Information Technology Question Paper with Answer Key PDFs (May 10 - Afternoon Session)

AP PGECET Questions

• 1.

  If the vapour pressure at two temperatures of a solid phase in equilibrium with its liquid phase is known, then the latent heat of fusion can be calculated by the:
  

  • Nernst Heat Theorem
    
  • Maxwell's equation
    
  • Van Laar equation
    
  • Clapeyron–Clausius equation
    
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• 2.

  1 mole of Argon gas is heated at constant pressure from 200 K to 600 K.
  If \( C_p = 4\ \text{cal} \cdot \text{deg}^{-1} \cdot \text{mol}^{-1} \), then the change in entropy will be:
  (Given \( \ln 3 = 1.09 \))
  

  • 4.36 Cal.deg$^{-1}$mol$^{-1}$
    
  • 2.76 Cal.deg$^{-1}$mol$^{-1}$
    
  • 3.34 Cal.deg$^{-1}$mol$^{-1}$
    
  • 5.39 Cal.deg$^{-1}$mol$^{-1}$
    
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• 3.

  A number is selected randomly from each of the following two sets:
  {1, 2, 3, 4, 5, 6, 7, 8}, {2, 3, 4, 5, 6, 7, 8, 9}
  What is the probability that the sum of the numbers is 9?

  • \(\frac{1}{8}\)
    
  • \(\frac{1}{16}\)
    
  • \(\frac{3}{32}\)
    
  • \(\frac{7}{64}\)
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• 4.

  The absolute humidity of air at 101.325 kPa is measured to be 0.02 kg of water per kg of dry air. Then the partial pressure of water vapour in the air is:
  

  • 1.99 kPa
    
  • 2.55 kPa
    
  • 3.16 kPa
    
  • 3.87 kPa
    
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• 5.

  Why is the equilibrium constant (K) temperature-dependent?
  

  • Because $\Delta G^\circ$ depends on T
    
  • Because pressure affects K
    
  • Because entropy is temperature-independent
    
  • Because fugacity coefficients change with T
    
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• 6.

  The entropy of single crystalline Silicon at absolute zero will be:
  

  • 2
    
  • 1
    
  • 0
    
  • 10
    
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