Teacha
  • Courses
  • Mock Exams
  • For Tutors
  • For Schools
  • Pricing
Log InStart Free
  1. Past Questions
  2. /
  3. OAU
  4. /
  5. Chemistry
  6. /
  7. 2008/2009
  8. /
  9. Q15
Question 15

Which of the following processes leads to increase in entropy?

  • A.Mixing of a sample of NaCI and sand
  • B.Condensation of water vapour
  • C.Boiling of a sample of water
  • D.Cooling a saturated solution
Objective

Question details

Exam body
OAU
Subject
Chemistry
Year
2008/2009
Question no.
#15
Type
Objective
Previous · Q14Which of the following is NOT a redox reaction? Next · Q16 Which one of the following statements is true?

More from this paper

  • Q11A saturated solution AgCI was found to have a concentration of 1.30 x 10 -5…
  • Q120.06g of a hydrocarbon occupies 32cm 3 at S.T.P. Its formula is
  • Q13Consider the following compounds: (i) CH 3 CH2C(CH3)2CH2CH3 (ii) CH3CH2CH2CH3…
  • Q17A liquid begins to boil when
  • Q18An element which exists in more than one crystalline form is said to exhibit.
  • Q19Which of the following is an example of a chemical changes?
See all Chemistry 2008/2009 questions
Teacha

Africa's learning & exam readiness platform. Built for students, tutors, and schools.

Platform

  • Courses
  • Mock Exams
  • Past Questions

For You

  • I'm a Tutor
  • I'm a School
  • Pricing

© 2025 Teacha. Built for African learners, tutors, and schools. Teacha is not affiliated with WAEC, NECO, or JAMB. All past questions are sourced from publicly available materials.

Privacy PolicyTerms of UseCookie Policy