he 5. Instant cold packs use an endothermic reaction. These types of ice packs are stored...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
he 5. Instant cold packs use an endothermic reaction. These types of ice packs are stored at room temperature rather than needing to be physically cooled before use. When one breaks a tube inside the pack, two chemicals mix or react and absorb enough energy to produce a cooling effect. Common types include solid ammonium nitrate (NH.CI) dissolving in water. Explain why the solubility of ammonium nitrate in water is a spontaneous reaction, even though it is an endothermic reaction. Use entropy of the system and surrounding to explain this. (4 marks) water solubilit of ammonium nitrate he 5. Instant cold packs use an endothermic reaction. These types of ice packs are stored at room temperature rather than needing to be physically cooled before use. When one breaks a tube inside the pack, two chemicals mix or react and absorb enough energy to produce a cooling effect. Common types include solid ammonium nitrate (NH.CI) dissolving in water. Explain why the solubility of ammonium nitrate in water is a spontaneous reaction, even though it is an endothermic reaction. Use entropy of the system and surrounding to explain this. (4 marks) water solubilit of ammonium nitrate
Expert Answer:
Answer rating: 100% (QA)
Answer First of all let me point out that the chemical formula of ammonium nitrate is NH4NO3 not NH4... View the full answer
Related Book For
Elementary Principles of Chemical Processes
ISBN: 978-1119498759
4th edition
Authors: Richard M. Felder, ? Ronald W. Rousseau, ? Lisa G. Bullard
Posted Date:
Students also viewed these chemistry questions
-
Instant cold packs are used for first aid when ice is not available. In one such device, a small pouch containing 2.00 102 grams of ammonium nitrate (NH4NO3) is placed in a bag containing 2.00 102...
-
Ammonium nitrate dissolves spontaneously and endothermally in water at room temperature. What can you deduce about the sign of S for this solution process?
-
An ice cube tray contains enough water at 22.0oC to make 18 ice cubes, each of which has a mass of 30.0 g. The tray is placed in a freezer that uses CF2Cl2 as a refrigerant. The heat of vaporization...
-
(c) It is known that although variance is a widely used measure of investment risk, variance does not satisfy the concept of subadditivity. This means that a risk measure should reflect the fact that...
-
The Following information relates to the debt securities investments of Wildcat Company. 1- On 2/1, the company purchased 10% bonds of Gibbons Co. having a par value of $300,000 at 100 plus accrued...
-
Few of the shark attacks listed in Table 2.1 are fatal. Overall, 63 fatal shark attacks were recorded in the ISAF from 2004 to 2013, with 2 reported in Florida, 2 in Hawaii, 4 in California, 15 in...
-
Eco-control has been explained with use of three different approaches.What is eco-control? Explain the difference between the three approaches. Is there a link between the integrated approach and...
-
Parandah Electronics Ltd., located in England, assembles a standard electrical component from parts it purchases from various suppliers. The production process consists of several steps, starting...
-
1. A diversified food company is considering the closing of its condiment division. What qualitative factors should be considered before discontinuing a division or product line? 2. An automobile...
-
Hastings College pooled the individual investments of three of its funds on December 31, 2024. The recorded value and the fair market value of the investments on December 31, 2024, are presented...
-
Provided below are an analyst's forecasts of a company's revenue, net operating profit after tax (NOPAT), and net operating assets (NOA) as of 12/31/2021. Forecast Horizon Period ($ millions)...
-
How common is it for a Covid test to give a false positive result? A false positive result occurs when a test reads positive, but the person does not have the disease. a) Your Guess: Calculation -...
-
Current and voltage are given in the figure below power electronics to which waveforms belong: Draw the converter circuit. Average voltage and current on the load. Get the relations for the value.
-
Assume that a population has the following characteristics. What would the actuarially fair premiums be for each group? What would the community-rated premium be for the entire population?
-
A manager receives 9 applications for a specific position. She wants to narrow it down to 4 . In how many ways can she rank 4 applications?
-
A certain stock portfolio is selling for $1,000 and pays a 2.5% dividend yield. The risk-free rate is 1% per year. Suppose the one-year futures price is also $1,000. Explain why this represents an...
-
A square area of edge length L is located in the XY-plane and centered at the origin. This area is filled with a uniform surface charge of 10+ C/m. Find the electric field (magnitude and direction)...
-
Simplify the expression. Assume that all variables are positive. 23VI1 2 V44 8
-
Convert the temperatures in parts (a) and (b) and temperature intervals in parts (c) and (d): (a) T = 85F to R, C, K (b) T = 10C to K, F, R (c) T = 85C to K, F, R (d) T = 150R to F, C, K
-
A gas mixture containing 85.0 mole% N2 and the balance n-hexane flows through a pipe at a rate of 100.0m 3 fh, the pressure is 2.00 atm absolute and the temperature is 100C. (a) What is the molar...
-
A system has been devised to store acetonitrile safely at high pressures and temperatures. The acetonitrile is contained in a 0.2-ft3 tank maintained at 4500psia and 550F. This tank is placed inside...
-
How does the transistor width-to-length ratio affect the small-signal voltage gain of a common-source amplifier?
-
Sketch a simple common-source amplifier circuit and discuss the general ac circuit characteristics (voltage gain and output resistance).
-
How does the body effect change the small-signal equivalent circuit of the MOSFET?
Study smarter with the SolutionInn App