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Chemistry Past Questions and Answers

Post Utme Chemistry Questions

Question 411:
Why does the volume of a gas increase when heated?
  • A Particles become liquids
  • B Particles lose energy
  • C Particles move faster apart
  • D Particles stop colliding
View Answer & Explanation
Question 412:
Convert 227°C to kelvin.
  • A 400 K
  • B 500 K
  • C 327 K
  • D 600 K
View Answer & Explanation
Question 413:
A gas occupies 24 cm³ at pressure 3 atm. Find the new pressure if volume becomes 6 cm³.
  • A 12 atm
  • B 6 atm
  • C 8 atm
  • D 4 atm
View Answer & Explanation
Question 414:
The pressure exerted by gas particles is caused by:
  • A Magnetic forces only
  • B Collisions with container walls
  • C Attraction between neutrons
  • D Electron transfer reactions
View Answer & Explanation
Question 415:
A gas occupies 32 cm³ at pressure 2 atm. Find the new pressure at 8 cm³.
  • A 4 atm
  • B 8 atm
  • C 6 atm
  • D 2 atm
View Answer & Explanation