Is it possible to compress an ideal gas isothermally in an adiabatic piston–cylinder device? explain?

1 answer:

3 0

<span>Answer: Since, Q = U+W (Q-W = U) With adiabatic, Q =0 If some work is done then, U will be non zero. And since U is internal energy change it should result in a temperature change. With isothermal process we are also saying U=0 but that would imply that W=0. However we did work since compression requires work to be done. So it is not possible.</span>

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Light of wavelength 600 nm passes though two slits separated by 0.22mm and is observed on a screen 1.1m behind the slits. The lo

Ne4ueva [31]

Answer:

$y(m=1)=\frac{(1)(600*10^{-9}m)(1.1m)}{0.22m}=3*10^{-6}m\\\\y(m=1)=\frac{(-1)(600*10^{-9}m)(1.1m)}{0.22m}=-3*10^{-6}m$

Explanation:

We have to take into account the expression for the position of the fringes

$dsen\theta=m\lambda\\y=\frac{m\lambda D}{d}$

where m is the number of the maximum, d is the separation of the slits, D is the distance to the screen.

(a) By replacing we obtain

$y(m=1)=\frac{(1)(600*10^{-9}m)(1.1m)}{0.22m}=3*10^{-6}m\\\\y(m=1)=\frac{(-1)(600*10^{-9}m)(1.1m)}{0.22m}=-3*10^{-6}m$

(b) more information is required to solve this point. Please complete the information.

HOPE THIS HELPS!

4 0

3 years ago

Read 2 more answers

Why does green light has a lower frequency than blue color?

Naya [18.7K]

The best way to look at it is the other way around.

Electromagnetic waves exist over a huge range of frequencies, from less
than 1 per second up to more than 3 billion billion billion per second.

If electromagnetic waves with frequencies between maybe about
4 million billion per second up to about 7.5 million billion per second
go into your eye, you SEE them.

Outside of that range, your eye doesn't know that there's anything there. But
IN that range, your eye has incredible nerve ends in the back that can tell the
difference between different frequencies. The highest frequencies in that range
produce the feeling of blue in your brain. The next highest ones make a feeling
of green. The next highest ones make the impression of yellow, and so on and
so on, down to the lowest frequencies that your eye can detect, and those look
red. If the frequency is any lower than red, you don't see it even when it pours
into your eyes.

5 0

4 years ago

#9 help plssssssssss

fenix001 [56]

#9 because you cant get more work out than you put in and you cant have a machine that is over 100% efficient
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4 0

3 years ago

An Iron weight, suspended by a string, is motionless. The tension in the string is 4,75 newtons What is the mass of the iron wei

MakcuM [25]

Answer: A

0.485 Kg

Explanation:

Since the iron weight is motionless, the magnitude of tension T in the string will be equal but opposite to the magnitude of the weight W.

T = W

Where W = mg

T = mg

Where T = 4.75 N, g = 9.81m/s^2

4.75 = 9.81m

m = 4.75/9.81

m = 0.485 Kg

Therefore, the mass of the iron weight is approximately 0.485 kg

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3 years ago

A wheel accelerates from rest to 59 rad/s^2 at a uniform rate of 58 rad/s^2. Through what angle (in radians) did the wheel turn

Nutka1998 [239]

To solve this problem we will apply the physical equations of the angular kinematic movement, for which it defines the square of the final angular velocity as the sum between the square of the initial angular velocity and the product between 2 times the angular acceleration and angular displacement. We will clear said angular displacement to find the correct response

Using,

$\omega^2 = \omega_0^2 +2\alpha \theta$