Answer:
A) P1=2 [bar] , W=-12 [kJ]
B) P1=0.8 [bar] , W=-7.3303 [kJ]
C) P1=0.6077 [bar] , W=-6.4091 [kJ]
Explanation:
First, from the problem we know the following information:
V1=0.1 m^3
V2=0.04 m^3
P2=2 bar =200 kPa
The relation PV^n=constant means PV^n is a constant through all the process, so we can derive the initial pressure as:
a) To the case a) the constant n is equal to 0, we can calculate the initial pressure substituting n=0 in the previous expression, so:
The expression to calculate the work is:
If n=0:
Then:
The work is:
b) To the case b) the constant n is equal to 1, we can calculate the initial pressure substituting n=1 in the initial expression, so:
If n=1 then:
To calculate the work:
[/tex]
Substituting:
c) To the case c) the constant n is equal to 1.3, we can calculate the initial pressure substituting n=1.3 in the initial expression, so:
First:
The work:
Substituting:
W=-6.4091 kJ
Only some metals are attracted by magnets; these metals are called ferromagnetic is your answer
Answer:
Kinase Enzyme
Explanation:
Kinase is an enzyme that catalyzes a biochemical reaction where it transfers phosphate groups from high-energy, phosphate-donating molecules to specific substrates. This process is known as phosphorylation. During phosphorylation, the substrate gains a phosphate group and the high-energy ATP molecule donates a phosphate group.
Kinases belong to the enzyme family of phosphotransferases. Kinases are different from phosphorylases, as the latter catalyzes the reaction where inorganic phosphate is added to the substrate. Therefore, kinases are essential enzyme in human physiology.
Answer:
Temperature difference in kelvin =7K
Temperature difference in Fahrenheit degree = 12.6°F
Explanation:
Temperature difference = 7°C
273 is added to the Celsius value to convert to kelvin temperature.However if 273 is added to both the initial and final values of the Celsius temperature values, then the difference still stays the same. Hence the difference in kelvin is 7K.
To convert the temperature difference to Fahrenheit we simply multiply 1.8
=7*1.8 = 12.6°F
Answer:
$3.51
Explanation:
The energy (E) delivered by a system is the product of the power (P) dissipated by the system and the time (t) taken for the dissipation. i.e
E = P x t -----------------------(i)
Where;
The power (P) is the product of the current (I) flowing through the system and the voltage (V) across the system. i.e
P = I x V
Substituting P = I x V into equation (i) gives;
E = (I x V) x t
=> E = IVt --------------------(ii)
<em>From the question;</em>
Current (I) = 0.3A
Voltage (V) = 1.3V
time (t) = 75 hours = 75h
<em>Substituting these values into equation (ii) gives;</em>
=> E = 0.3 x 1.3 x 75
=> E = 29.25 Kwh
The energy delivered is 29.25Kwh
But in the U.S;
$0.12 = 1Kwh
=> 29.25Kwh = 29.25 x $0.12
=> $3.51
Therefore, the cost of the energy delivered by this battery per kilowatt hour is $3.51