User Account

All Pages

What is the entropy change of the resistor and the universe

Assignment Help Chemical Engineering
Reference no: EM13961015

A thermally insulated resistor of 20 ohms has a current of 5 A passed through it for 1 s. It is initially at 20 degrees C.

a) what is the temperature rise?

b) what is the entropy change of the resistor and the universe?

Mass of resistor if 5 g; Cp for the resistor is 0.8x10^3 JKg-1K-1

(Hint: In the actual process, dissipative work is done on the resistor. Imagine a reversible process taking it between the same equilibrium states)

Reference no: EM13961015

Questions Cloud

Find r. round your answer to the nearest thousandth. : Two resistors of resistance R_1 and R_2, with R_2>R_1, are connected to a voltage source with voltage V_0. When the resistors are connected in series, the current is I_s. When the resistors are connected in parallel, the current I_p from the sourc..
What advantages are there to critical thinking : Watch the video titled This Is Water by David Foster Wallace. How would reason help you gain freedom in these situations? What advantages are there to critical thinking? What do you expect to gain from a course in logic
What is the total average inventory holding cost for a year : Items purchased from a vendor cost $40 each, and the forecast for the next year’s demand is 1,000 units. It costs $10 every time an order is placed and inventory held has a 5% cost of capital. What is the total average inventory holding cost for a ye..
Whar are the pros and cons of a more diverse workforce : What are the pros and cons of a more diverse workforce? Are more diverse healthcare organizations better able to compete because of their diversity? Why? How would you propose managing employees to maximize the benefits and minimize the potential pro..
What is the entropy change of the resistor and the universe : A thermally insulated resistor of 20 ohms has a current of 5 A passed through it for 1 s. It is initially at 20 degrees C.
Practices with the strategic goals of the organization : Most HR executives in healthcare do not have a major responsibility for achieving top management priorities such as improving productivity, quality of care, cost containment, customer service, and financial performance. What do you think are some of ..
Which colour do we see the fastest : Which colour do we see the fastest?  Red or Green?  Please explain why.  Also, why do we react faster with our hands compared to our feet?  When there are multiple colour stimuli do we respond to 1 colour more than others, if not, can you explain why..
Identify with target record-retention practices : This case involves the recruiting and hiring of Executive Team Leaders (“ETL’s” – essentially, assistant managers) for target stores. The EEOC brought suit on behalf of four African-American applicants. What were the legal issues in this case? What d..
How climate change might impact upon civil engineering : Discuss how this might impact upon civil engineering. Your discussion should include the impact in both the largely developed world and those parts of the world that are far less developed in terms of infrastructure.

Reviews

Write a Review

Chemical Engineering Questions & Answers

  Equilibrium data for the system ethanol

Design a suitable sieve plate for conditions below the feed point. Equilibrium data for the system ethanol-water, at 760 mmHg, mol fractions ethanol:

  Calculate the solubility

Strontium fluoride, SrF2, has a Kspvalue in water of 2.45 × 10-9at room temperature. Calculate the solubility of SrF2in water. Express your answer in units of molarity.

  Obvious and less obvious ethical issues

What are some of the obvious and less obvious ethical issues involved in product recalls? How might these ethical issues come into conflict with a particular company's economic concerns?

  A step input signal from a reactor

__________ is the response curve for a step input signal from a reactor. 1. S-curve 2. C-curve

  Question regarding the radioactive copper

Radioactive copper-64 decays with a half-life of 12.8 days. a. What is the value of k in s^-1? b. A sample contains 28.0 mg 64Cu. How many decay events will be produced in the first second?

  Calculate the quantity of pure make

1) Calculate the quantity of pure make up oxygen to be supplied, (in kg/h), in steady state operation.

  Question 1 two well of radius 18 inches are constructed in

question 1 two well of radius 18 inches are constructed in a confined aquifer 150 ft thick with hydraulic conductivity

  The absolute entropy of the system is negative

Consider 1 mole of ideal gas at 1 bar and 300 K, which of the following statements is true? The absolute entropy of the system is negative. Helium (m=4 amu) will have a larger entropy than argon (m=40 amu).

  Mass percent of the original mixture

What is the composition by mass percent of the original mixture? Explain in detail how you arrived at this answer, writing down every step to the solution.

  Ideal gas law air at 4mpa and 3000c enters a will

air at 4mpa and 3000c enters a will insulated turbine operating at steady state with negligible velocity. the air

  Estimate the diffusion coefficient of oil dispersant

Estimate the diffusion coefficient of Oil Dispersant A in a 10 mole percent Dispersant A -sea water mixture. The concentrated solution is non-ideal

  Write balanced equations for the combustion of component

Write balanced equations for the combustion of each component of the fuel gas.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd