Sign Up Sign Up

Connect with:
Google LinkedIn
or use


Have an account? Sign In Now

Sign In Sign In

Connect with:
Google LinkedIn
or use


Forgot Password?

Don't have account, Sign Up Here

Forgot Password Forgot Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.


Have an account? Sign In Now

Sorry, you do not have a permission to ask a question, You must login to ask question.

Connect with:
Google LinkedIn
or use


Forgot Password?

Need An Account, Sign Up Here

Please briefly explain why you feel this question should be reported.

Please briefly explain why you feel this answer should be reported.

Please briefly explain why you feel this user should be reported.

Sign InSign Up

Askmemetallurgy

Askmemetallurgy Logo Askmemetallurgy Logo

Askmemetallurgy Navigation

  • MCQs
    • Metallurgical Engineering mcq
    • Topic Wise mcq
    • Numericals
  • Notes
  • GATE Papers
  • Interview
Search
Ask A Question

Mobile menu

Close
Ask a Question
  • Home
  • Categories
  • Questions
    • New Questions
    • Trending Questions
  • GATE Papers
  • Recent Posts
  • Badges
  • MCQs
    • Metallurgical Engineering mcq
    • Topic Wise mcq
    • Numericals
  • Notes
  • GATE Papers
  • Interview
Home/ Metallurgical Engineering Numerical Problem and Solution/Thermodynamics Numerical
Click here to check latest metallurgy jobs

Thermodynamics Numerical

1.Copper melts at 1083°C and its heat of fusion is 12.97 kJ/mol. Calculate the change of entropy at melting point in (J/mol-k.)

10.5
8.5
9.56
12.97
Discuss Here


2.Determine the heat flow across a plane wall of 10 cm thickness with a constant thermal conductivity of 8.5 W/m-K when the surface temperatures are steady at 100°C and 30°C. The wall area is 3m2 .

46.85 kW
17.85 kW
34.67 kW
55.99 kW
Discuss Here


3.At what temperature will the diffusion coefficient for the diffusion of zinc in copper have a value of 2.6 × 10 -16 m2 /s Do =2.4 × 10 -5 m2 /s Qd =189 KJ/mol.

628 K
901 K
370 K
500 K
Discuss Here


4.Determine the heat transfer by convection over a surface of 0.5 m 2 area if the surface is at 160°C and fluid is at 40°C. The value of convective heat transfer coefficient is 25 W/m2 K

1500 kW
2.56 kW
1.5 kW
15 kW
Discuss Here


5.Calculate the entropy increase in (J/mol-k) when one mole of ice melts into water at 0°C. The latent heat of fusion of ice, ∆H = 6.02 kJ/mol

22.04
34
13
40
Discuss Here


6.Two moles of a monatomic ideal gas are contained at a pressure of 1 atm and a temperature of 300 K. 34,166 joules of heat are transferred to the gas, as a result of which the gas expands and does 1216 joules of work against its surroundings. The process is reversible. Calculate the final temperature of the gas. in ( Kelvin)

1347
1400
1620
1200
Discuss Here


7.One mole of monatomic ideal gas is reversibly and isothermally expanded at 1000 K to twice its original volume. The work done by the gas in Joules is

2430
2503
5006
5763
Discuss Here





Share
  • Facebook

Sidebar

Adv 120x240

Stats

  • Questions 1,524
  • Answers 2,846
  • Best Answers 488
  • Users 3,921

Top Metallurgists

Arpita Samal

Arpita Samal

  • 1,681 Points
Platinum
digbijaya igit

digbijaya igit

  • 1,408 Points
Platinum
Rohit.km

Rohit.km

  • 1,395 Points
Platinum

Adv 120x600

Explore

  • Home
  • Categories
  • Questions
    • New Questions
    • Trending Questions
  • GATE Papers
  • Recent Posts
  • Badges

Footer

Askmemetallurgy.com

Askmemetallurgy is the one stop solution for all the need of a Metallurgical Engineers. Askmemetallurgy provides its users with a variety of services to help meta students from semester to his career path. Learn more.

Legal Stuff

  • Privacy Policy
  • Terms Of Use

Help & Services

  • FAQ
  • Contact Us

Our App

Askmemetallurgy app     Askmemetallurgy app

Follow Us

Copyright © 2021 Askmemetallurgy.com, All rights reserved. Registration on or use of this site constitutes acceptance of our Privacy Policy
DMCA.com Protection Status

Askmemetallurgy website uses cookies to improve your experience. Cookie settingsACCEPT
Privacy & Cookies Policy

Privacy Overview

This website uses cookies to improve your experience while you navigate through the website. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may have an effect on your browsing experience.
Necessary
Always Enabled
Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
Non-necessary
Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.
SAVE & ACCEPT