ZuoTi.Pro
Question

Please show step by step please. Answers are given, just need to know how to work...

Please show step by step please. Answers are given, just need to know how to work them.

12) On a cold day, you take in 4.2 L of air into your lungs at a temperature of 0

science   physics   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

12) when pressure is constant

V1/T1 = V2/T2...

4.2/273 = V2/(273+37)...
V2 = 4.2*310/273 = 4.8 L..

13) from P*V = n*R*T...

n = P*V/(R*T) = 101.3**4.2/(8.314*300)=0.17 moles...

here R is universal gas constant = 8.314 L kPa K^-1 mol^-1

0 0
Add a comment
Answer #2

The volume of air is proportional to the absolute temperature.
T1 = 273 degrees
T2= 310 degrees,
So V2/V1 = 310/273
V1 = 310 / 273 * 4.2 L
= 4.8

partB

just use ideal gas law:
pV = nRT
101300*(4.20/1000) = n*8.314*(27+273)
n = 0.17 mole

partB

0 0
Add a comment
Know the answer?
Add Answer to:
Please show step by step please. Answers are given, just need to know how to work...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • Please need I need the answers for all of them from 1to 20. If you know...

    Please need I need the answers for all of them from 1to 20. If you know just few of them don’t answer the question but if you know all of them please answer alll questions from 1 to 20 thanks. Oxygen, trachea, aerohydrotherapy, Epi-pen, Carbon dioxide, cough, cold or freezing, upper new, lower, growth, epiglottis, NARES, Conchae, tiny hairs, breathing, chondroma, 1. The respiratory system consists of the respiratory tracts 2、 The function of the respiratory system is to facilitate...

  • Can someone please work these step-by-step. I have the answers but needing to know how to...

    Can someone please work these step-by-step. I have the answers but needing to know how to work them. 5. A hammer is dropped from the top of a tower that is 400 m high. If we neglect air resistance so that the only force on the hammer is gravity, with what velocity does the hammer strike the ground? 6. A cowboy shoots a bullet straight up into the air with an initial speed of 800 m/s. If the bullet is...

  • Please show all your work. I need step by step. How did you solve? Please help...

    Please show all your work. I need step by step. How did you solve? Please help me both part or both question. Please help me with all question. Will give you thumbs up. 3. According to government data, 25% of employed women have never been married. If 20 employed women are selected at random, what is the probability that two or fewer of them have never been married? (Note: set up a numerical expression only, but you do not have...

  • Need help, please show work. Some correct answers are shown, all I need to know is...

    Need help, please show work. Some correct answers are shown, all I need to know is how to work through the problem. Please show work. We were unable to transcribe this image6.27 yuan per S 62.37 rupee per S China 27 yuan India 150 rupee Compared to the U.S., prices in Switzerland are102.1__percent higher (circle one). If you took $50,000 to Switzerland it would feel like you had $ 24,742.27after purchasing power parity adjustment. Compared to the U.S., prices in...

  • Please show all work on how to get to the answer. Answers are below but need...

    Please show all work on how to get to the answer. Answers are below but need to know how to answer the questions asked. 20. How would you dilute a 1 mg/mL urea stock standard to be equivalent to a 5 mg/dL working standard? 20. make a 1/20 dilution 


  • Please show all your work. I need step by step. How did you solve? Please help...

    Please show all your work. I need step by step. How did you solve? Please help me both part or both question 5. Use the Gauss-Jordan method to solve the given system of equations. 2 +9 + 2 + 300 = 1, 2 + 2 + 4 + 5 = = 3, (a) -ہے .5- = يه + 22 - 1 (b) a + 2g - 2 = 1, 39 + 2 = 3, 3r + 3g - 42 =...

  • 'Only need to answer question (f), (g)' Answers are shown. Just need to know the steps and how yo...

    'Only need to answer question (f), (g)' Answers are shown. Just need to know the steps and how you got there. Answer: 1. You are trying to control a process temperature in a nanofabrication lab. The current open-loop response to a temperature adjustment is shown below. Use the Ziegler-Nichols tuning method to answer the questions below. 100- Temp Time (sec) 90 8 910 12 13 5 16 a) Find L and R from the plot above, show your work above...

  • In need of help with these problems, can you please show work to know how it...

    In need of help with these problems, can you please show work to know how it was done please and thank you 10. For the function (x) = 6sinx - 3 cos 2x on (0,2x) Find all critical numbers. You will want to recall the identity sin 2x=2 sin .xcosx 11. Find the indefinite integrals 10x + 4x +5 12. Find the indefinite integral ſ3x sin(2x) dx

  • I know the final answer but I need to know all steps please show work for...

    I know the final answer but I need to know all steps please show work for good rate Problem 1. A manufacturer has a machine that, when operational at the beginning of a day, has a probability of 0.13 of breaking down sometime during the day. When this happens, the repair is done the next day and completed at the end of that day (a) Formulate the evolution of the status of the machine as a Markov chain by identifying...

  • PLEASE SHOW STEPS, I have the answers, I just need a step by step guide 4....

    PLEASE SHOW STEPS, I have the answers, I just need a step by step guide 4. Having laser beams in the place of eyes is an x-linked recessive condition. In a (made up) population, 35% of the males has the laser beam condition (Xb). a. What is the allele frequency in this population? b. What is the probability that a random male and random female in the population will have a girl with the laser beam condition?

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT