Examkits is a JAMB CBT practice platform that provides over 20 years of past questions, Post UTME questions, and detailed video solutions to help students prepare for their exams.

How do I practice JAMB past questions on Examkits?

You can practice JAMB past questions online, on Android, or on a desktop using the Examkits app. Just register on our website and choose your preferred device.

Does Examkits work offline?

Yes. Our Android and Windows versions support offline usage. Once downloaded and activated, no internet is required to use most of the features.

Do you offer video solutions for JAMB questions?

Yes, Examkits provides detailed video explanations for all JAMB past questions from 2000 to 2024, helping students understand how to solve each problem.

Examkits offers free practice for some subjects. However, full access requires a one-time affordable activation fee for each version of the app.

PHYSICS

JAMB 2014 - Question 25

Physics 2014 JAMB Past Questions - Question 25: Heat transfer by convection in a liquid is due to the

Choose the most appropriate option for the gap .

Heat transfer by convection in a liquid is due to the

A: increased vibration of the molecules of the liquid about their mean position

B: variation of density of the liquid

C: expansion of the liquid as it is heated

D: latent heat of vaporization of the liquid

Examkit's JAMB CBT App

Practice JAMB offline with our Online, PC and Mobile App

✅ 25+ years of past questions (2000 to 2025)
✅ Video solutions and explanation to questions
✅ E-library
✅ Study by topic
✅ And more.

Correct Answer

Explanation

As the liquid is heated, it expands and the volume increases, hence the density decreases and the molecules of the liquid rise up. there position is taking by cold, heavier/denser molecules. this sets up a convection current of warm rising molecules and cold descending dense molecules.