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Chemistry Past Questions and Answers

Post Utme Chemistry Questions

Question 386:
A gas occupies 15 cm³ at pressure 2 atm. Find the pressure when volume becomes 5 cm³.
  • A 4 atm
  • B 8 atm
  • C 6 atm
  • D 3 atm
View Answer & Explanation
Question 387:
Boyle’s law applies to a:
  • A Liquid solution only
  • B Changing mass of gas
  • C Solid substance only
  • D Fixed mass of gas
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Question 388:
Which formula represents Boyle’s law correctly?
  • A V₁/T₁ = V₂/T₂
  • B P₁V₂ = P₂T₁
  • C P₁V₁ = P₂V₂
  • D P₁/T₁ = P₂/T₂
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Question 389:
A gas occupies 80 cm³ at pressure 4 atm. Find the volume at 16 atm.
  • A 60 cm³
  • B 80 cm³
  • C 40 cm³
  • D 20 cm³
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Question 390:
Charles’ law can be written mathematically as:
  • A VT = constant
  • B PT = constant
  • C V/T = constant
  • D PV = constant
View Answer & Explanation