Engineering College

What is the value of the work interaction in this process?

a. -272 kJ/kg
b. -32 kJ/kg
c. 31 kJ/kg
d. 272 kJ/kg

Answers

Answer 1

Answer:

The answer is "[tex]-121\ \frac{KJ}{Kg}[/tex]".

Explanation:

Please find the correct question in the attachment file.

using formula:

[tex]\to W=-P_1V_1+P_2V_2 \\\\When \\\\\to W= \frac{P_1V_1-P_2V_2}{n-1}\ \ or \ \ \frac{RT_1 -RT_2}{n-1}\\\\[/tex]

[tex]W =\frac{R(T_1 -T_2)}{n-1}\\\\[/tex]

    [tex]=\frac{0.287(25 -237)}{1.5-1}\\\\=\frac{0.287(-212)}{0.5}\\\\=\frac{-60.844}{0.5}\\\\=-121.688 \frac{KJ}{Kg}\\\\=-121 \frac{KJ}{Kg}\\\\[/tex]

Related Questions

What are motion study principles? How are they classified?

Answers

The principles of motion economy can be classified into four groups: Principles related to the use of human body, Principles related to the arrangement of the work place, Principles related to the design of tools and equipment.

Frederick Taylor created a series of guidelines known as the "motion study principles" to boost productivity at work. Time study, motion study, fatigue study, etc technique conduct research are the four divisions into which they fall.

What is motion study principles?

Motion studies are the study of actions like lifting, putting things down, standing, changing direction, and other actions that are made when performing routine work.

In order to execute the task effectively in less time, unnecessary moves are attempted to be removed. The following three headings comprise the fundamentals: Making use of the human body. The layout of the workplace. Machinery and tools design.

Motion study principles will be the which will help in designing or putting films into a particular order. Also how the routine works are being made is suggested.

Learn more about motion study, here:

https://brainly.com/question/30164973

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how to update android 4.4.2 to 5.1 if there isnt any update available​

Answers

Answer:

You cant update it if there isin´t any update available lol

Explanation:

Well simply you can’t the problem is likely to be that the phone is to old !

When block C is in position xC = 0.8 m, its speed is 1.5 m/s to the right. Find the velocity of block A at this instant. Note that the rope runs around the pulley B and a pin attached to block C, as indicated.

Answers

Answer:

The answer is "2 m/s".

Explanation:

The triangle from of the right angle:

[tex]\to (x_c-0.8)+(1.5+y_4) +\sqrt{x_c^2 + 1.5^2}= constant[/tex]

Differentiating the above equation:

[tex]\to V_c +V_A+ \frac{X_cV_c}{\sqrt{x_c^2 +1}}=0\\\\\to 1-V_A+ \frac{0.8 \times 1.5}{\sqrt{ 0.8^2+1.5}}=0\\\\[/tex]

[tex]\to V_A= \frac{1.2}{\sqrt{ 0.64+1.5}}+1\\\\[/tex]

        [tex]= \frac{1.2}{ 1.46}+1\\\\= \frac{1.2+ 1.46}{ 1.46}\\\\ = \frac{2.66}{1.46}\\\\= 1.82 \ \frac{m}{s}\\\\= 2 \ \frac{m}{s}[/tex]

Americans spent approximately __ cents of each dollar on the purchase of energy?

Answers

Answer:

14 cents

Explanation:

1 trillion US dollar

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