How much heat energy in joules

Assignment Help Chemistry
Reference no: EM132131836

An iron skillet weighing 1.28kg is heated on a stove to 178°C. Suppose the skillet is cooled to room temperature., 21°C. How much heat energyin joules must be removed to effect this cooling? The specific heat of iron is 0.449 J/ (g.°C)

Reference no: EM132131836

Questions Cloud

What is the energy density of the coal : Burning a 1.83 - g sample of coal in the same calorimeter causes a temperature change of 4.90 degrees Celsius. What is the energy density of the coal?
Mass solution of silvernitrate : A chemistry lab experiment requires 67.4 grams of silvernitrate. How many grams of a 15.5% by mass solution of silvernitrate should be used?
Effuse under the same conditions : How long does it take for 2.6 L Ar to effuse under the same conditions?
Find the lowest five possible frequencies : A signal was acquired at 200 Hz and the spectrum showed a peak at 80 Hz. No anti- Max pts aliasing filter was used.
How much heat energy in joules : How much heat energyin joules must be removed to effect this cooling? The specific heat of iron is 0.449 J/ (g.°C)
What is the empirical formula of glucose : Glucose is a carbonate that your body can burn for fuel. It is 40 percent C and 6.71 percent H by mass. The rest is O. What is the empirical formula of glucose
Explain what is sim phase : SIMcon is a forensics software tool that can generate information for mobile device investigations.
What is the concentration of naoh for the final solution : What is the concentration of NaOH for the final solution?
Explain how to perform the signed decimal to hexadecimal : Explain how to perform the signed decimal to Hexadecimal conversion and vice versa. Show it with two examples for each.

Reviews

Write a Review

Chemistry Questions & Answers

  Calculate how much of the original material

Suppose you have 1.250g of the original thulium-167 with half life 7.990E + 05. Calculate how much of the original material will remain after 100 s, 1,000 s and 10,000 s.

  Represents the correct formula for aluminum oxide

Which of the following represents the correct formula for aluminum oxide?

  South african democratic society

Conduct an investigation extent which media reflects a south african democratic society reflect article 16 of south africam'africam's bill of right

  Compute the vapor pressure in mm hg at room temperature

Given that mercury has a Hvap of 59.11 kJ/mol and its normal boiling point is 356.7°C, calculate the vapor pressure in mm Hg at room temperature, 25°C.

  What is the calculated precision for measurement

What is the calculated precision for your measurement of the volume delivered by the pipet and what is the suggested limit of precision

  Calculate the mass in a sample of gold

Calculate the mass in a sample of gold (Au) that absorbs 225 J to change its temperature from 15.0oC to 47.0oC.

  What is the molar mass of lysine

What is the molar mass of lysine if 750.0 mL of a solution containing 8.60 g of lysine has an osmotic pressure of 1.918 atm? T = 25.0°C

  The venom of biting ants contains formic acid hcooh

question 1 how much naoh would you need to dissolve in water in order to prepare 1.50 l of a naoh solution in which

  The flask was then shaken until the solution was uniform a

a student placed 14.5 g of glucose rm c6h12o6 in a volumetric flask added enough water to dissolve the glucose by

  A palladium crystallizes in a face-centered cubic unit cell

Palladium crystallizes in a face-centered cubic unit cell. Its density is 12.0 g/cm^3 at 27 degrees C. Calculate the atomic radius of Pd.

  Calculate the weight and number average molecular weights

calculate the weight and number average molecular weights as a function of conversion for the linear polycondensation

  Define what will happen to the volume of a gas

What will happen to the volume of a gas when the pressure of a gas decreased from 2 atm to 1 atm, while the temp is decreased from 200c to 100c. Will it increase decrease or remain the same.Explain why.

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!

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