FCs3w1 Heat
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Last updated 3 months ago
23 questions
1
Read through chapter 14 in your book. Note that we skipped the entirety of unit 2, I consider all of that chemistry, that does mean that there may be concepts that unit 3 takes for granted that you know, say, about the structure of atoms, states of matter, what is pressure, etc. in this spot, write any questions you have on the reading, and any part of unit 2 that you think you would like me to go into any depth on.
Read through chapter 14 in your book. Note that we skipped the entirety of unit 2, I consider all of that chemistry, that does mean that there may be concepts that unit 3 takes for granted that you know, say, about the structure of atoms, states of matter, what is pressure, etc. in this spot, write any questions you have on the reading, and any part of unit 2 that you think you would like me to go into any depth on.
1
Which is greater, the increase in temperature of 1° Celsius or 1° Fahrenheit
Which is greater, the increase in temperature of 1° Celsius or 1° Fahrenheit
1
Absolute zero is on a scale where
Absolute zero is on a scale where
1
Why does the pressure of gas enclosed in a rigid container increase as the temperature increases?
Why does the pressure of gas enclosed in a rigid container increase as the temperature increases?
1
Adding the same amount of heat to two different objects does not necessarily produce the same increase in temperature. Why not?
Adding the same amount of heat to two different objects does not necessarily produce the same increase in temperature. Why not?
1
The desert sand is very hot during the day and very cold at night. What does this tell you about its specific heat?
The desert sand is very hot during the day and very cold at night. What does this tell you about its specific heat?
1
After you measure the dimensions of a plot of land with a steel tape measure on a hot day, you return and measure it again with the same tape measure on a cold day. You will get two different measurements. Which day will yield a larger measurement?
After you measure the dimensions of a plot of land with a steel tape measure on a hot day, you return and measure it again with the same tape measure on a cold day. You will get two different measurements. Which day will yield a larger measurement?
1
Why can't you establish whether you are running a high temperature by feeling your own forehead?
Why can't you establish whether you are running a high temperature by feeling your own forehead?
1
Which has a greater amount of internal energy, an iceberg or a cup of hot coffee
Which has a greater amount of internal energy, an iceberg or a cup of hot coffee
1
Which has a higher temperature, the iceberg or the cup of hot coffee
Which has a higher temperature, the iceberg or the cup of hot coffee
1
Note in this example you might assume the coffee is really just water, and probably has the same specific heat capacity as the iceberg. So i offer the following analogy. you have a bunch of test tubes. one is full, a million are almost but not quite empty, (a couple ml each). Which has more, the one full one, or all the water in the ten thousand combined?
Note in this example you might assume the coffee is really just water, and probably has the same specific heat capacity as the iceberg. So i offer the following analogy. you have a bunch of test tubes. one is full, a million are almost but not quite empty, (a couple ml each). Which has more, the one full one, or all the water in the ten thousand combined?
1
What is the relationship between the heat of an object (the amount of internal kinetic energy) and its temperature?
What is the relationship between the heat of an object (the amount of internal kinetic energy) and its temperature?
1
Water has a specific heat capacity of 4200 J/kgoC, calculate the energy needed to increase the temperature of the 1 kg water by 15 oC:
Water has a specific heat capacity of 4200 J/kgoC, calculate the energy needed to increase the temperature of the 1 kg water by 15 oC:
1
Water has a specific heat capacity of 4200 J/kgoC, calculate the energy needed to increase the temperature of the 1.25 kg water by 15 oC:
Water has a specific heat capacity of 4200 J/kgoC, calculate the energy needed to increase the temperature of the 1.25 kg water by 15 oC:
1
The last time I needed to use these equations in the wild was when the cooler in Adeline's axolotl's aquarium was not able to bring the temperature down to the requisite 20°C . for you to do this with the information you have right now, we are going to assume you have several 2-liter bottles of ice cold (but still liquid) water at 0°C. Our plan is to put the ice cold bottles into the tank, and let the tank warm the bottles up until both the tank and the bottles are 20°C. Note that we are not dumping the water in the tank, that is bad for the axolotl, and that would also be bad for our calculations. think through using the equation above to figure out how many 2 liter bottles you would need to heat from 0°C to 20°C in order cool 20 liters from 25°C to 20°C
The last time I needed to use these equations in the wild was when the cooler in Adeline's axolotl's aquarium was not able to bring the temperature down to the requisite 20°C . for you to do this with the information you have right now, we are going to assume you have several 2-liter bottles of ice cold (but still liquid) water at 0°C. Our plan is to put the ice cold bottles into the tank, and let the tank warm the bottles up until both the tank and the bottles are 20°C. Note that we are not dumping the water in the tank, that is bad for the axolotl, and that would also be bad for our calculations. think through using the equation above to figure out how many 2 liter bottles you would need to heat from 0°C to 20°C in order cool 20 liters from 25°C to 20°C
1
Consider a piece of pie: the apple pie filling has a specific heat capacity two times higher than the crust. They both go into the oven at the same temperature, and after an hour, they have stopped changing temperature. When you take a bite, you eat an equal mass of each. Which of the following is not true?
Consider a piece of pie: the apple pie filling has a specific heat capacity two times higher than the crust. They both go into the oven at the same temperature, and after an hour, they have stopped changing temperature. When you take a bite, you eat an equal mass of each. Which of the following is not true?
1
explain why there are seams in a concrete sidewalk.
explain why there are seams in a concrete sidewalk.
1
Why does a penny get warmer when struck with a hammer?
Why does a penny get warmer when struck with a hammer?
1
you have a piston full of air. You rapidly compress the air. What happens to the temperature of the air and why?
you have a piston full of air. You rapidly compress the air. What happens to the temperature of the air and why?
1
you are late on dinner, and you need to bring water to a boil faster. what can you do to make the water boil faster. your stove is already at its highest temperature
you are late on dinner, and you need to bring water to a boil faster. what can you do to make the water boil faster. your stove is already at its highest temperature
1
in a fully insulated bucket, You have 2 kg of iron at 99°c and 10kg of water at 0°c. You put the iron in the water. After it reaches equilibrium, you check the temperature of the water and the iron. What is the relationship between the temperature of the water and the temperature of the iron?
in a fully insulated bucket, You have 2 kg of iron at 99°c and 10kg of water at 0°c. You put the iron in the water. After it reaches equilibrium, you check the temperature of the water and the iron. What is the relationship between the temperature of the water and the temperature of the iron?
1
On level - what is the relationship between the amount of heat that leaves the iron and the amount of heat the water gains? and what is the relationship between those numbers and the new temperatures of the iron and the water? HONORS: the specific heat of water is 4.186J/g°C and the specific heat capacity of iron is 0.451 J/g°C. Calculate the new temperature.
On level - what is the relationship between the amount of heat that leaves the iron and the amount of heat the water gains? and what is the relationship between those numbers and the new temperatures of the iron and the water? HONORS: the specific heat of water is 4.186J/g°C and the specific heat capacity of iron is 0.451 J/g°C. Calculate the new temperature.
1
Below is a list of basic concepts from this unit, categorize them as "I got this" "i'm shaky on this" "so confused by this"
Below is a list of basic concepts from this unit, categorize them as "I got this" "i'm shaky on this" "so confused by this"
- internal kinetic energy
- the difference between different temperature scales
- the difference between heat energy and a calorie
- Why substances expand when they get warmer
- why water expands when it freezes
- specific heat capacity
- using
- I got this
- Shaky on this
- so confused