me measurable quantities and their units to remem
kelvin
Quantity
Temperature
Length
Mass
Weight
Volume
Density
Pressure
kilogram
newton
cubic metre
kilogram per cubic metre
pascal
Pa
ses
t the following temperatures to the celsius scale
93 K
(b) 470 K.
t the following temperatures to the kelvin scale
h) 373°C.
Answers
Books are My Friends Read tor more information
1. A Textbook of heat - JB. Rajam
2 Heat - V.N Kelkar
3. A Treatise on Heat - Saha and Srivastava
Exercise
nare
Filintire blanks and rewrite the
b
The amount of water vapor in air is
determined in terms of its ----.....
If objects of equal masses are given
equal heat, their final temperature will
be different. This is due to difference
3. What is meant by specific heat
capacity? How will
you prove
experimentally that different
substances have different specific
heat capacities?
While deciding the unit for heat.
which temperatures interval is
chosen? Why?
5. Explain the following temperature
ys time graph.
Boiling water + Vapour
in their
During transformation of liquid phase
to solid phase, the latent heat is
b of temperatur
100
1)
the ice when
Liquid - Gaseous state
SO
2
Water
Observe
following
graph
Considering the change in volume of
water as its temperature is raised
from OC discuss the difference in
the behaviour of water and other
substances. What is this behaviour
of water called?
Liquid
20-
10-
water of
1 kg Volume of water
11 in iz it is is 20 12 34 36 2 3 134
Time (Minutes)
lce+ Water
(Solid-liquid)
6. Explain the following:
What is the role of anomalous
behaviour of water in preserving
aquatic life in regions of cold
climate?
b. How can you relate the formation of
water droplets on the outer surface
of a bottle taken out of refrigerator
with formation of dew?
c. In cold regions in winter, the rocks
crack due to anomolous expansion
of water
and (2)
16
Temperature....
How can you relate the formation of
water droplets on the outer surface
of a bottle taken out of refrigerator
with formation of dew?
c. In cold regions in winter, the rocks
crack due to anomolous expansion
of water
and (2)
16
Temperature....