Start learning →

Equal masses of water at 20 degrees C and 60 degrees C are mixed with no heat lost. The final temperature is:

A30 degrees C
B35 degrees C
C40 degrees C
D45 degrees C
Answer & Solution
Correct answer: C. 40 degrees C
Equal masses of the same liquid settle at the average, (20 + 60) / 2 = 40 degrees C.
Practise this question with Quill — Olympiad (Class 7) →

Keep practising Heat

Browse all Heat questions for Olympiad (Class 7), or explore more Science topics.

Start a Heat lesson →
Related questions