Question

1.4
The density of mercury is 13.6g/cm and its volume is 1000 cm'. What is its
mass?
​

Answer 1

Answer:

Let the mass of mercury  m= 13.6 gm and volume be V=1cm  

3

.

Now change in volume when it is heated upto 50  

o

C,

ΔV=VαΔT

ΔV=1×1.82×10  

−4

×50

ΔV=91×10  

−4

cm  

3

 

New volume V  

1

​  

=V+ΔV=1.0091cm  

3

 

New density ρ=  

V  

1

​  

 

m

​  

=  

1.0091

13.6

​  

=13.48gcm  

−3