Answer:
Mass of carbon = 109.1 g
Explanation:
Given data:
Mass of carbondioxide = 400 g
Mass of carbon = ?
Solution:
Molar mass of carbon = 12 g/mol
Molar mass of CO₂ = 44 g/mol
Mass of carbon in 400g of CO₂:
Mass of carbon = 12 g/mol/44 g/mol × 400 g
Mass of carbon = 109.1 g
Answer:
Head loss in turbulent flow is varying as square of velocity.
Explanation:
As we know that head loss in turbulent flow given as
Where
F is the friction factor.
L is the length of pipe
V is the flow velocity
D is the diameter of pipe.
So from above equation we can say that
It means that head loss in turbulent flow is varying as square of velocity.
We know that loss in flow are of two types
1.Major loss :Due to surface property of pipe
2.Minor loss :Due to change in momentum of fluid.
Answer:
The correct answer is They provide the molar ratio of reactant and products in a chemical reaction.
Explanation:
Balanced chemical equation helps us to calculate the number of moles of both reactant and product.For example
2H2+O2=2H2O
From the above balanced equation it can be stated that 2 molecules of hydrogen(H2) reacts with 1 molecule of oxygen(O2) to form 2 molecules of water.
How hot or cold something is the temperature and its measured by a thermometer
The volume of the brick in cubic meters is 0.00108 m³
<u><em>calculation</em></u>
<u><em> </em></u> volume of a brick =length x width x height
-length = 15 cm
width = 6.0 cm
height = 12 cm
volume is therefore= 15 cm x 6.0 cm x 12 cm =1080 cm³
convert 1080 cm³ into m³
that is 1 cm³ = 1 x 10^-6m³
1080 cm³ = ? m³
by cross multiplication
=[ (1080 cm³ x 1 x10^-6 m³) / 1 cm³] = 0.00108 m³
