All categories

3 years ago

For an isothermal process, the work done by or on a system of ideal gas is equal to the change in what?

Physics

1 answer:

morpeh [17]3 years ago

5 0

Explanation:

The equation for work done by a system is as follows.

$\Delta U = Q - W$

where, $\Delta U$ = change in internal energy

Q = heat absorbed or released by the system

W = work done by the system

Since it is given that it is an isothermal process. Therefore, $\Delta T = 0$ .

Whereas internal energy depends on temperature and as there is no change in temperature so, there will be no change in internal energy of the system.

Hence, the equation will be as follows.

$\Delta U = Q - W$

0 = Q - W

Q = W

Therefore, we can conclude that for an isothermal process, the work done by or on a system of ideal gas is equal to the change in Q.

You might be interested in

An capacitor consists of two large parallel plates of area A separated by a very small distance d. This capacitor is connected t

scoundrel [369]

Answer:

Will be doubled.

Explanation:

For a capacitor of parallel plates of area A, separated by a distance d, such that the charges in the plates are Q and -Q, the capacitance is written as:

$C = \frac{Q}{V} = e_0\frac{A}{d}$

where e₀ is a constant, the electric permittivity.

Now we can isolate V, the potential difference between the plates as:

$V = \frac{Q}{e_0} *\frac{d}{A}$

Now, notice that the separation between the plates is in the numerator.

Thus, if we double the distance we will get a new potential difference V', such that:

$V' = \frac{Q}{e_0} *\frac{2d}{A} = 2*( \frac{Q}{e_0} *\frac{d}{A}) = 2*V\\V' = 2*V$

So, if we double the distance between the plates, the potential difference will also be doubled.

6 0

3 years ago

Can an object contain heat? Why or why not?

Stells [14]

Every object has thermal energy (better word than heat, since we associate that with high temperatures). This is actually the molecules vibrating, moving a lot. More thermal energy means more vibrating, and thus also expanding in volume.

8 0

3 years ago

Sometimes in the winter, ice crystals grow directly from the moisture in the air. As the water changes from a gas to a solid, th

mrs_skeptik [129]

Answer: B. slow down as they lose energy

7 0

3 years ago

What name is given to the process that occurs when light passes from air to water?

-Dominant- [34]

Answer:

Refraction

Explanation:

5 0

3 years ago

16. Two capacitors have an equivalent

Gennadij [26K]

Answer:

C1 + C2 = 30 parallel connection

C1 * C2 / (C1 + C2) = 7.2 series connection

C1 * C2 = 7.2 * (C1 + C2) = 216

C2 + 216 / C2 = 30 using first equation

C2^2 + 216 = 30 C2

C2^2 - 30 C2 + 216 = 0

C2 = 12 or 18 solving the quadratic

Then C1 = 18 or 12

5 0

3 years ago