Answer:
1402.73 m
Explanation:
Mass of Azurite=3.25 lb
Percent of copper in AZurite mineral=55.1%
Diameter of copper wire,d=0.0113 in
Radius of copper wire=
Density of copper=
1 lb=454 g
3.25 lb=
Mass of Azurite=
Mass of copper=
Density=
Using the formula
Volume of copper wire=
Radius of copper wire=
1 in=2.54 cm
Volume of copper wire=
Using the formula
1 m=100 cm
Hence, the length of copper wire required=1402.73 m
Answer:
OptionC)
Explanation:
As muscle size increase gradually when we become adolsence and it increases in boys..
Answer:
A. Workdone by helium, W = -1.829KJ
B. Internal energy, DE = 25.271KJ
Explanation:
Workdone can be defined as the force moving through a distance. For a gaseous system, when the volume of the gas expands, the system is losing energy. Therefore,
W = -P*DV
Where P is the pressure in pascal
DV is the change in volume in m3
DV = Vfinal - Vinitial
= 23.70 - 5.30
= 18.4L
W = -(0.981 * 18.4)
= -18.0504L.atm
Converting L.atm to joule,
= -18.0504 * 101.325
= -1828.97J
= -1.829KJ
If the system loses heat, Q the rection occurring is Exothermic.
Heat is the transfer of energy from one system to another.
Q = mcDT
Where m is the mass of the system
C is the specific heat capacity
Q = 27.20KJ
Internal energy is the summation of the heat supplied to a system and the workdone by the system
DE = Q + W
DE = 27.10 + (-1.829)
= 25.27KJ
This strategy was known as "Island hopping"
No it is not balanced because there are four oxygen atoms in H2SO4 while there 5 oxygen atoms in the reactants side. There are also more hydrogen atoms on the reactants side. To make it balanced remove the 2 in front of H2O. :)
