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Byju's Answer
Standard VIII
Chemistry
Mixture
The mass of t...
Question
The mass of the substance (in gms) is
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Solution
Q
=
m
s
Δ
T
From the curve for the first part when the temp changes from
0
o
C
to
80
o
C
, amount of heat added is
800
c
a
l
.
Substituting
Q
=
800
and
Δ
T
=
80
we get
800
=
m
×
0.5
×
80
as
s
=
0.5
given
∴
m
=
20
g
m
s
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