A cubical shell with edges of length a is positioned so that two adjacent sides of one face are coincident with the +x and +y ax
1 answer:
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The initial volume of the gas is
while its final volume is
so its variation of volume is
The pressure is constant, and it is
Therefore the work done by the gas is
where the negative sign means the work is done by the surrounding on the gas.
The heat energy given to the gas is
And the change in internal energy of the gas can be found by using the first law of thermodynamics:
where the positive sign means the internal energy of the gas has increased.
while its final volume is
so its variation of volume is
The pressure is constant, and it is
Therefore the work done by the gas is
where the negative sign means the work is done by the surrounding on the gas.
The heat energy given to the gas is
And the change in internal energy of the gas can be found by using the first law of thermodynamics:
where the positive sign means the internal energy of the gas has increased.
Answer:
Explanation:
Capacitance C is given by
A= area of capacitor cross section
d= distance
therefore,
A_1= πR^2
d_1= d
A_= π(2R)^2
d_2 = 2d
threfore
and
also we know that E= V/d
⇒
⇒
= A_1/A_2= =4
therefore,