Download App

Water — CHEMISTRY STD 9 — Question

ICSE BoardEnglish MediumSTD 9CHEMISTRYWater1 Mark
Question
Explain why:
Ice at zero degrees centigrade has greater cooling effect than water at $0^oC.$
✓

Answer

Ice at $0^{\circ} C$ gives more cooling effect than water at $0^{\circ} C$ because at $0^{\circ} C$ ice absorbs 336 J per gram of energy to melt to $0^{\circ} C$ water.

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 "[1 Mark Question Answer]" from Water→Water — all question types→CHEMISTRY STD 9 question papers→ICSE Board STD 9 question papers→ICSE Board question paper generator→

Similar questions

State the type of reactions for the following represent and balance the ones that are not balanced.
$NaOH + HCl → NaCl + H_2O$
→
Identify the following reaction as either oxidation or reduction:
$K - e^- → K^+$
→
What are electrochemical reactions? Support your answer by two examples.
→
What is the composition of water? In what volume its elements combine?
→
Write a balanced equation for the following:
Zinc reacts with caustic soda solution
→
State the type of bonding in the following molecules.
Hydrogen chloride
→
State, giving reason, whether the substances printed in bold letters have been oxidized or reduced.
$Cl_2+ H_2S\rightarrow 2HCl + S$
→
From the symbol ${ }_2^4 \mathrm{He}$ for the element helium, write down the mass number and the atomic number of the element.
→
Balance the equations:
$\mathrm{CaCO}_3$ (s) $+\mathrm{HCl}(\mathrm{aq})-\mathrm{CaCl}_2(\mathrm{aq})+\mathrm{H}_2 \mathrm{O}(\mathrm{l})+\mathrm{CO}_2$ (g)
→
Why there was a necessity for classification of elements? Give at least two reasons.
→