MTWTFSS
Page No.:
YOUVA
Date:
UNIT1.1-Water
Water properties
Polarity st
Water is polar molecule, which
a
means it has
a positive and negative end (2charges): this is
due to an uneven distribution of electrons.
between the oxygen and hydrogen atoms.
oxygen atom attracts electrons mo
The 0
re strongly
than the hydrogen atoms. As a result,
the oxygen
atom has partial negotive charge(8), because it.
a
pulls the shared electrons closer to itself, and the б
hydrogen atoms have à partial positive charge.(8t) This
creates a dipole in the water molecule; making it polar.The
polar nature of water, allows it to form hydrogen bonds
with other polar substances and other water molecules,and
have the tag of universal solvent.
Cohesion and Adhesion
The attraction between water molecules themselves, is called
cohesion. This is what allows water to form into droplets
and have surface tension, which insects can walk on. The:
attraction between water molecules and other substances, is
called adhesion. These properties allow for capillary action
in plants, movement of waterin: soil and functioning blood
vessels.
High specific heat capacity Hihga tand sitiaage daill
Water has a high specific heat capacity, which means it can
absorb and store a significant amoun't of heat without a
significant increase in temperature. This property helpsdnt
, M T WTF
S
Page No.:
2
AVUOY
YOUV
Date: A
maintain a and makes water an effective
stable climate
temperature buffer.The specific heat capacity of water
is 4.186 J/g-K°C. This is a thermal propenty
High heat of vaporization wtirslo9
Water has highi heat of vaporization, meaningit takes
a
a lot of energy to change from à liguid to a gas,
this property is essential for cooling living organisms
and is used in' processes like sweating. This is also a
thermal propenty ats m enntend doatto mote nopian
neguo sd laer a atnotn wapbad anlt tt
Viscosity and buoyancyla sitgen ltag a n mots
Viscosity is la measure of a fluid's resistance to flow. It
quantifies how thickior sticky a fluid is Fluids with high
viścosity flow slowly, whe.reas. fluids with clo'w viscósity
flow more easily! Waterchas moderate viscasity, and
a
its viscosity decreases as temperature increases. Water?s
viscosity plays role in the: behaviour/moyamenti ofad
a
water in rivers, and the flow of blood.Buoyancy is the
upward force exerted on an object submerged in a
fluidi duelata the differences in pressure between the
top and bottom of the object.An example of buoyancy
is swim bladders in a fish that allow the fish to regulate
their position in water without experding too much energy
on swimming.t wats esitragany
stswenislioe ta tramevon trata
Application of water properties 2/9229
High capacity wtonqes tesl sitisege doilt
specific heat M
: Biological Temperatune Regulation: Organisms use
water'stihigh specific heat capacity to maintain
stable body temperätures! NT
Page No.:
YOUVA
Date:
UNIT1.1-Water
Water properties
Polarity st
Water is polar molecule, which
a
means it has
a positive and negative end (2charges): this is
due to an uneven distribution of electrons.
between the oxygen and hydrogen atoms.
oxygen atom attracts electrons mo
The 0
re strongly
than the hydrogen atoms. As a result,
the oxygen
atom has partial negotive charge(8), because it.
a
pulls the shared electrons closer to itself, and the б
hydrogen atoms have à partial positive charge.(8t) This
creates a dipole in the water molecule; making it polar.The
polar nature of water, allows it to form hydrogen bonds
with other polar substances and other water molecules,and
have the tag of universal solvent.
Cohesion and Adhesion
The attraction between water molecules themselves, is called
cohesion. This is what allows water to form into droplets
and have surface tension, which insects can walk on. The:
attraction between water molecules and other substances, is
called adhesion. These properties allow for capillary action
in plants, movement of waterin: soil and functioning blood
vessels.
High specific heat capacity Hihga tand sitiaage daill
Water has a high specific heat capacity, which means it can
absorb and store a significant amoun't of heat without a
significant increase in temperature. This property helpsdnt
, M T WTF
S
Page No.:
2
AVUOY
YOUV
Date: A
maintain a and makes water an effective
stable climate
temperature buffer.The specific heat capacity of water
is 4.186 J/g-K°C. This is a thermal propenty
High heat of vaporization wtirslo9
Water has highi heat of vaporization, meaningit takes
a
a lot of energy to change from à liguid to a gas,
this property is essential for cooling living organisms
and is used in' processes like sweating. This is also a
thermal propenty ats m enntend doatto mote nopian
neguo sd laer a atnotn wapbad anlt tt
Viscosity and buoyancyla sitgen ltag a n mots
Viscosity is la measure of a fluid's resistance to flow. It
quantifies how thickior sticky a fluid is Fluids with high
viścosity flow slowly, whe.reas. fluids with clo'w viscósity
flow more easily! Waterchas moderate viscasity, and
a
its viscosity decreases as temperature increases. Water?s
viscosity plays role in the: behaviour/moyamenti ofad
a
water in rivers, and the flow of blood.Buoyancy is the
upward force exerted on an object submerged in a
fluidi duelata the differences in pressure between the
top and bottom of the object.An example of buoyancy
is swim bladders in a fish that allow the fish to regulate
their position in water without experding too much energy
on swimming.t wats esitragany
stswenislioe ta tramevon trata
Application of water properties 2/9229
High capacity wtonqes tesl sitisege doilt
specific heat M
: Biological Temperatune Regulation: Organisms use
water'stihigh specific heat capacity to maintain
stable body temperätures! NT
