lf the temperature of a small quantity of water in a closed container is gradually increased from 0o to 40oC then the density of the water within this range
increases for a while and then decreases
decreases for a while and then increases
increases gradually
decreases gradually
remains the same
Explanation
Video Explanation
No video available
Post your Contribution
Discussions (10)
Here is an explanation:
the answer is A and this is why.
From 0 to 4°, the volume of water decreases with an increase in temperature since the density of a substance is inversely proportion to its volume, as the volume decreases, the density increases. from 4 to 40°, the volume of water increases as it is being cooled so therefore, the density decreases living the answer as option A since its increases for a little while then decreases steadily.
REF: check anomalous expansion of water for a better understanding
It will first increase up to 4¤C, then it will decrease. This is bcos water density is highest @ 4¤C
A is correct option!
I don‘t agree with the answer because water has its max density @4‘C.....Meaning its increase then decreases.......Option A
