Question

In: Chemistry

You have placed a copper pot with water to heat on the stove. After one minute...

You have placed a copper pot with water to heat on the stove. After one minute you place your finger in the water and you are okay. When you touch the pot your finger gets burned. Upload a drawing of a molecular view of what the copper atoms and water molecules look like at the beginning of heating the pot and after the pot has been heated for 15 mins.

Solutions

Expert Solution

Clearly, at t = 0, there is not enough heat to change temperature

water molecules are not that high on T, therefore, they move slowly.

The pot will start heating first, due to the contact with the heat source.

Note that copper is a good conductor of heat

it will icnrease its Temperature readily

From the diagram, initially, the molecules of wter move slowly,

the atoms of copper are near each other since they are compact, i.e. denser (not to sacale)

in the 15 mins later diagram

water has started to vaporize due to the kinetic energy / temperature of the molecules

Also, copper molecuels are far away since they started to expand


Related Solutions

A pot of hot water is boiling on your stove.  The pot is in the shape of...
A pot of hot water is boiling on your stove.  The pot is in the shape of a round cylinder made of aluminum which is 10 cm in radius.  The aluminum is 3 mm thick.  You notice that after 22 minutes, 0.13 kg of water has boiled away. A. What is the temperature of the inner surface of the bottom of the pot? B. How much energy is required to boil away M kg of water? C. What is the difference in temperature...
A kettle is filled with tap water and placed on a stove. The stove element is...
A kettle is filled with tap water and placed on a stove. The stove element is turned on. Explain why the water starts to boil after a while.
Inventor jockey will in a way heat a pot of water by freezing one other amount...
Inventor jockey will in a way heat a pot of water by freezing one other amount of water. a) He wants to heat 1.5 kg of water from 0.0 to 80.0 ºC in a closed and well insulated container. How much water at 0.0 ºC does he then have to freeze? b) Does the invention contradict the first theorem of thermodynamics? Motivate your answer.
A pot of water is boiling under one atmosphere of pressure. Assume that heat enters the...
A pot of water is boiling under one atmosphere of pressure. Assume that heat enters the pot only through its bottom, which is copper and rests on a heating element. In two minutes, the mass of water boiled away is m = 3.5 kg. The radius of the pot bottom is R = 10.0 cm and the thickness is L = 1.0 mm. What is the temperature of the heating element in contact with the pot?
When heating a pot of pasta on an electric stove as shown, which heat transfer mechanisms...
When heating a pot of pasta on an electric stove as shown, which heat transfer mechanisms are taking place? A: Only conduction from the electric heat element to the metal pan B: Only convection through the water in the pan C: Only radiation outward from the glowing heat element D: All three mechanisms are taking place
1. A 450-g ball of copper at 20 0C is placed in a pot of boiling...
1. A 450-g ball of copper at 20 0C is placed in a pot of boiling water until equilibrium is reached. How much thermal energy is absorbed by the ball?[ specific heat of copper = 385.1 J/Kg 0C] 2. A 100-g mass of an unknown material at 100 0C is placed in an aluminum calorimeter of 60.0 g that contains 150 g of water at an initial temperature of 20.0 0C. The final temperature is observed to be 21.5 0C....
You are warming up 2 kg of soup in a pot on a stove. The soup...
You are warming up 2 kg of soup in a pot on a stove. The soup (C=4 kj/kg/K) starts at 4ºC. You have it on a heating element that is drawing 1.2 kW of power. 15% of the heat from the element is going directly to the air. Of the heat going into the pot, 20% is lost by heat transfer to the room. You are stirring vigorously and add 25 KJ of energy to the pot. How long will...
A cup of boiling water is placed outside at 1:00pm. One minute later the temperature of...
A cup of boiling water is placed outside at 1:00pm. One minute later the temperature of the water is 152 F. After another minute its temperature is 112 F. What is the outside temperature Differential Equations(Cooling & Mixing)
Copper Bottom Pot Company manufactures one product, The Big Pot. The company has the following standards...
Copper Bottom Pot Company manufactures one product, The Big Pot. The company has the following standards per unit for the The Big Pot: Standard quantity Standard price Standard cost Direct materials 6.0 KGs $14 per KG $84 Direct labour 1.5 Hours $20 per hour $30 The following is recorded by the company for The Big Pot for January 2020: The company produced 600 units during the month A total of 4000 KGS of material were purchased at a cost of...
Part A A copper pot of mass 2.5 kg contains 5.2 litres of water (i.e. 5.2...
Part A A copper pot of mass 2.5 kg contains 5.2 litres of water (i.e. 5.2 kg) at room temperature (200C). An iron block of mass 9.4 kg is dropped into the water and when the system comes into thermal equilibrium, a temperature of 380C is measured. What is the initial temperature of the iron block? Give your answer in oC to three significant figures. Part B Iron has a specific heat that is larger than that of copper. A...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT