WHICH OF THIS PLS FAST!!!

Nitrogen at an initial state of 300 K, 150 kPa and 0.2 m3 is compressed slowly in an isothermal process to a final pressure of 8

s344n2d4d5 [400]

Answer:

Work = - 4175.23 J

Heat Transfer = -4175.23 J

Explanation:

The work done in an isothermal process, is given by the following formula:

W = RT ln (P1/P2)

where,

W = Work done

R = Universal Gas Constant = 8.314 J/mol.k

T = Constant Temperature = 300 K

P1 = initial pressure = 150 KPa

P2 = final pressure = 800 KPa

using these values, we get:

W = (8.314 J/mol.K)(300 k) ln (150/800)

Here, negative sign shows that work is done on the system.

In isothermal process, from 1st law of thermodynamics:

Heat Transfer = Q = W (Since change in internal energy is zero for isothermal processes)

Here, negative sign shows that heat is transferred from the system to surrounding.

6 0

3 years ago

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ممكن الحل ............

Roman55 [17]

Answer:

i dont understand

Explanation:

4 0

4 years ago

The concrete canoe team does some analysis on their design and calculates that they need a compressive strength of 860 psi. They

vlada-n [284]

Answer:

874 psi

Explanation:

Given a sample mean (x') = 900,

and a standard error (SE) = 10

At 99% confidence, Z(critical) = 2.58

That gives 99% confidence interval as,

x' ± Z(critical) x SE = 900 ± 2.58 x 10

The value of the lower limit is,

900 - 25.8 = 874.2

≈ 874 psi

8 0

3 years ago

How does the Freedom Tower at the World Trade Center demonstrate a function of architecture? (Select all that apply.)

alexandr402 [8]

Answer:

It tells a people's history.

It expresses a legacy.

Explanation:

The Freedom Tower is the most important building in the United States, both for its height (it is the tallest in the nation and the continent) and for its commercial importance and its historical significance (it is part of the One World Trade Center complex, which replaced to the Twin Towers after the 2001 attack).

Thus, this building expresses a legacy as it symbolizes America's recovery from the terrorist threat, as well as perseverance and strength in the face of adversity that America has as a nation. On the other hand, it tells a story, as it is located in the same place where the Twin Towers were, marking an indelible memory of what happened in that place.

7 0

3 years ago

A partnership between a gaming company and moviemakers might happen in what two ways?

Allisa [31]

Answer:

1. The gaming company installs games for an arcade in the set of a movie

2. moviemakers might give permission to make a game based on the movie.

3. Advertisements on a game the moviemakers might get a percentage of the money made on a game because there are characters from the movie on the box saying "I played this game and it was awesome,"

Hope this helped! :)

Explanation:

6 0

3 years ago