How many calories of heat energy were absorbed

Assignment Help Chemistry
Reference no: EM13215638

Water's heat of fusion is 80. rm{cal/g} , and its specific heat is 1.0matrix{rm frac{cal}{g cdot ^{circ}C}} .

Some velomobile seats have been designed to hold ice packs inside their cushions. If you started a ride with ice packs that held 1400 g of frozen water at 0 rm{^{circ}C} , and the temperature of the water at the end of the ride was 32 rm{^{circ}C} , how many calories of heat energy were absorbed?

Express your answer numerically in calories using two significant figures.

 

Reference no: EM13215638

Questions Cloud

What is the empirical formula for a substance : what is the empirical formula for a substance if a 1.000 g sample of it contains .262 grams of nitrogen 0.075 grams of hydrogen and .663 grams of chlorine?
Determine the geometry about each interior atom : Determine the geometry about each interior atom in each molecule. (Skeletal structure is indicated in parentheses) CH3NH2(H3CNH2), CH3CO2CH3(H3CCOOCH3, both O atoms are attached to second C), NH2CO2H (H2NCOOH both O atoms are attached to C)
Evaluate the performance of the two suppliers : Which supplier should the CEO go with? CCS has a holding cost of 30%. It currently uses a continuous review policy for managing inventory and aims for a cycle service level of 95%. Weekly demand has a mean of 1000 and a standard deviation of 300.
Prepare the journal entries to record income tax expense : Depreciation reported on the tax return exceeded depreciation reported on the income statement by $128,000. This difference will reverse in equal amounts of $32,000 over the years 2015-2018. Interest received on municipal bonds was $11,600.
How many calories of heat energy were absorbed : Express your answer numerically in calories using two significant figures.
Determine the hourly capacity of each process stage : Determine the hourly capacity of each process stage and the number of machines needed to meet an output rate of 50,000 units per hour. How does facility layout impact your numerical analysis and process efficiency? Explain.
Describe the procedure for preparation : Describe the procedure for preparation of 250 cublic cm of aqueous sulphamic acid of accurately known concentration.
Calculate forecasts for days 11 : Using simple exponential smoothing with a smoothing constant of α = 0.2, and the demand and forecast data as given above, calculate forecasts for days 11 through 15. Put your answers in column 3 of the table below.
When the borrower pays herzog the correct amount owed : On July 1, 2012, Herzog Mining lends cash and accepts a $9,000 note receivable that offers 10% interest and is due in nine months. How would Herzog record the transaction on April 1, 2013, when the borrower pays Herzog the correct amount owed

Reviews

Write a Review

Chemistry Questions & Answers

  Calculate the number of fungal particles present

Calculate the number of fungal particles present in 1 m3 in the original air sample and express your answer in scientific notation, to one significant figure.

  Which one is neutral

-How can you tell which substance receives the H+ or not? and which one is neutral?

  Compute the volume of millimeters

What volume of water, in gallons would be required to fill a 750 mL container? 1 liter = 0.265 gallon Calculate the volume of millimeters for each of the following

  Define why c stretching mode gives rise

Explain why the C=C stretching mode gives rise to a rather weak IR band in 1-methylcyclohexane, while in its isomer

  Explain what is the ph at the half-stoichiometric point

What is the pH at the half-stoichiometric point (that is, what is the pH when you have added 50% of the total volume of base required to react with all of the acid originally present?)

  State the halide ion acts as the electrophile

Which of the following statements about the hydrohalogenation of 2-methyl-2-pentene with HCl is true? The halide ion acts as the electrophile in the second step of the reaction.

  Calculate the vappor pressure of diethyl ether at 0 degrees

Diethyl ether is a volatile organic compound. the vapor pressure of diethyl ether is 401 mm Hg at 18 degrees celsius and the change in H vapor = 26.0 kJ/mol. Calculate the vappor pressure of diethyl ether at 0 degrees C.

  What minimum mass of succimer in miligrams is needed

A modern chealting agent used for this purpose is succimer (C4H6O4S2). Suppose you are trying to determine the appropriate dose for succimer treatment of lead poisoning.

  Conceptual organic chemistry observe after elution

Discuss what you would observe after elution and visualization of a TLC plate having made the following mistakes in carrying out the analysis. Conceptual Organic chemistry

  Compute v40 and do a degree-of-freedom analysis

The object ofthis problem is to determine V40, the required volume ofthe 40% mixture. Calculate V40 and do a degree-of-freedom analysis.

  Would the following structures be polar or nonpolar

Would the following structures be polar or nonpolar?

  Find the specific solubilities for agcl, pbcl2

find the specific solubilities (in g/100g H2O) in both cold and hot water for AgCl, PbCl2, and Hg2Cl2.

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