Anomalous expansion of water/ specific heat capacity/ specific latent heat

define anomalous expansion of water

unusual expansion of water

when cooling what happens to the density

it increases

when cooling what happens to the volume

it decreases

what is the minimum volume and maximum density

4 degrees Celsius

when does the volume of of increases and density decreases

0 degrees celsius

ice at 0 degrees has a _______ volume and density than water at 0 degrees C

larger

if water is heated at 0 degrees celsius what occurs

it contracts instead of expanding

what is the biological importance of the anomalous expansion of water

helps preserve aquatic life during the winter

define specific heat capacity

the amount of heat required to raise the temperature

the is unit of specific heat capacity is

J/kg K

what is the specific heat capacity formulae

c= Q/mcΔT

c stands for

specific heat capacity

Q stands for

quantity of heat

t stands for

temperature change

heat given out is =

heat taken in

Quantity of heat formulae

Q=mcΔT

define latent heat

hidden heat

Power formulae

Work done/ time

energy transformed formulae

Power x time

what is the principle of method of mixtures

energy lost by hot object= energy gained by cold object

when a body at a higher temp is brought in contact with a body at a lower temp, the heat loss by the hot body is equal to the the heat gain of the cold body this is known as

calorimetry

specific heat capacity of water

4.2 J/g C

during latent heat what happens

heat is transferred but there is no change in state

latent heat formulae

Lf = Q/m

Vaporization formulae

Lv=Q/m