The term that is used to describe the energy needed to start a reaction is B. Activation Energy.
Answer:
a)
b).
Explanation:
Given that
Boyle's law
P V = Constant ,at constant temperature
a)
Given that
We know that for PV=C
Now by putting the values
PV= 50 x 0.106
Where P is in KPa and V is in
b)
PV= C
Take ln both sides
So
lnP + lnV =lnC ( C is constant)
By differentiating
So
When P= 50 KPa
It indicates the slope of PV=C curve.
It unit is .
Or we can say that .
D) decreasing temperature and increasing luminosity indicates a stellar evolution. This answer based on the axes of the Hertzsprung-Russell Diagram which describe the stellar evolution trend<span>. The X axis in the diagram indicates the decreasing of star's temperature. The Y axis in the diagram indicates the increasing of star's luminosity.</span>
It would have twice as much potential energy.