Download App

States of Matter — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryStates of Matter2 Marks
Question
Why are aerated water bottles kept under water during summer?
✓

Answer

It is done so as to reduce temperature, which will reduce pressure inside, otherwise, the bottle may burst because pressure is directly proportional to absolute temperature at volume.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "2 Marks Questions" from States of Matter→States of Matter — all question types→Chemistry STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Will entropy increase or decrease in the following changes?
  1. Sugar dissolved in water.
  2. Normal egg to hard boiled egg.
→
In three moles of ethane ($\mathrm{C}_2 \mathrm{H}_6$), calculate the following:
Number of molecules of ethane.
→
Calculate the oxidation states of Carbon, Bromine and Manganese in $C _3 O _2$ (Carbon suboxide), $Br _3 O _8$ (Tribromo octaoxide) and $Mn _3 O _4$ respectively.
→
Can $\mathrm{Fe}^{3+}$ oxidise $\mathrm{Br}^{-}$to $\mathrm{Br}^2$ at 1 M concentrations? $\mathrm{E}^{\circ}\left(\mathrm{Fe}^{3+} \mid \mathrm{Fe}^{2+}\right)=0.77 \mathrm{~V}$ and $\mathrm{E}^{\circ}\left(\mathrm{Br} \mid \mathrm{Br}^{-}\right)=1.09 \mathrm{~V}$
→
Using van der Waals' gas equation calculate the pressure exerted by 8.5 g of $\mathrm{NH}_3$ contained in 0.5 L vessel at 300 K . For ammonia, 'a' $=4.0 \mathrm{~atm} \mathrm{~L}^2 \mathrm{~mol}^{-2}, ' b '=0.036 \mathrm{~L} \mathrm{~mol}^{-1}$.
→
Write Lewis symbols for the following atoms and ions: $S$ and $S^{2-}$.
→
Eka-aluminium and eka-silicon were the names given by Mandeleev for the then unknown elements gallium and germanium respectively. A recently discovered element was first named as eka-mercury. What is its atomic number? Write its group number, electronic configuration, IUPAC and official names.
→
Calculate the solubility of $A _2 X _3$ in pure water, assuming that neither kind of ion reacts with water. The solubility product of $A _2 X _3, K_{ sp }=1.1 \times 10^{-23}$.
→
Nitric acid acts only as an oxidising agent while nitrous acid acts both as an oxidising as well as reducing agent. Explain.
→
Why does the first ionisation energy increase as we go from left to right along a given period of periodic table? Which group has highest ionisation enthalpy?
→