If the specific heat of water is 1.0 calorie/gram°C, how many calories are required to raise 500 grams of water 10.0°C? 510 cal 5,000 cal 50 cal 501 cal
Answers
Answer : Heat required, Q = 5000 cal
Explanation :
It is given that,
Specific heat of water, c = 1 calorie/gram °C
Mass of water, m = 500 grams
Change in temperature,
We have to found the amount of heat required. Mathematically, it can be written as :
Q = 5000 cal
So, the correct option is (B) " 5000 cal ".
Hence, this is the required solution.
5000 calories Helps :)
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watch
4 cups -tap water - You will need an ice cube tray and access to a freezer to freeze the water.
teaspoon
salt, table
______________________________________________________________
1.) How will the ice water mix with the salty water? Write your hypothesis below.
(I can't add the picture of the chart so bear with me)
Solution - Hypothesis Describing Mixing - Hypothesis Describing Temperature
(Will the top be warmer, cooler, or the same as the bottom?)
Solution 1
(Freshwater) - -
Solution 2
(salty water) - _____________________ - ________________________
Solution 3
(saturated water)- ______________ - _____________________
2.) Complete the data table. Sketch, use your computer to draw or write a detailed description to describe how the ice melts into the different solutions. At each interval, record the temperature at the top and bottom of the glass.
(Again I can't add the pic of the chart so bear with me)
Solution 1 - 0 minutes- 5 minutes- 10 minutes- 30 minutes-
(Freshwater)
Temperature
(top of glass) -______________________________-
Temperature
(bottom of the glass)-_______________________________-
Solution 2- 0 minutes- 5 minutes- 10 minutes- 30 minutes-
(salty water)
Temperature
(top of glass)- ____________________________________-
Temperature
(bottom of glass)-_______________________________________
Solution 3
(saturated water)- 0 minutes- 5 minutes- 10 minutes- 30 minutes-
Temperature
(top of glass)-___________________________________
Teperature
(bottom of glass)-_______________________________________
3.) Summarize your data. Describe how the ice melted into each solution, and compare the temperatures at the top and bottom of the glass.
(can't add the pic, bear with me)
Solution-
Mixing (how did the colord, fresh, melt-water mix with the salty water?)- Temperature (Was the top warmer or cooler, or was it the same as the bottom?) -
Solution 1
(freshwater)-__________________________________________-
Solution 2
(salty water)-___________________________________________
Solution 3
(saturated water)- ____________________________________
4.) What does your experiment suggest about what happens when icebergs melt into the ocean? Based on your data, do you think the sea-surface temperatures are warmer or cooler due to the melting water? Make sure you explain how your experiment helps you answer this question.
I really need help with this as soon as possible, if you do not know the answer to this do not answer please, let me repeat that, PLEASE DON'T ANSWER IF YOU DON'T KNOW THE ANSWER TO ALL THE QUESTIONS, also if your a k12 student, friend me so we can help each other with quizzes and stuff, and if you are a k12 student and you answer this, please don't put your exact answers on this, make it different from yours, I don't want a heart-attack email from my teacher
Answers
The way ice water mix with the salty water is that when a person adds salty water to ice, the salt will be the first thing to dissolves in the layer of liquid water that is seen on the surface.
By reducing the freezing point below the ices temperature, when the Ice is said to be in contact with salty water, it tends to melts, forming more liquid water, that will then dissolves more salt, causing a lot of ice to melt, and the process still goes on.
Learn more about Water Density from
Answers
Answer:
If two objects are dropped at the same height, the heavier object will hit the ground first.
Explanation:
A proper hypothesis has the form:
"If ... , then ... ".
Now, why the other sentence aren't hypothesis?
- Orange popsicles taste sweeter than grape popsicles.
This sentence its an OPINION. It may be true that, for the speaker/writer, orange popsicles taste sweeter, but this is an subjective opinion, and difficult to test.
- Children who wear backpacks do better academically.
This sentence its an STATEMENT. If we wish to make an proper hypothesis, it should take the form:
If children wear backpacks, then they do better academically.
- I think there is no effect on hearing if you listen to loud music only three hours a day.
This sentence its another OPINION. This opinion COULD be tested, but the proper way of write it as an hypothesis would be:
If someone listed to loud music only three hours a day, then there shoul be no effect on his/her hearing.
Answer:
Answer is:If two objects are dropped at the same height, the heavier object will hit the ground first.
Explanation:
Answers
TRUE
Answer:
False
Explanation:
Answers
When a piece of aluminum foil is taken out of the oven and cools from 100C to 50C. Then the change in temperature is 50°C.
What is temperature?
Temperature is a fundamental concept in physics that describes the degree of hotness or coldness of an object or system. It is a measure of the average kinetic energy of the molecules or particles that make up the object or system.
In other words, the temperature is a measure of how fast or slow the particles are moving. When the particles move faster, the temperature is higher, and when they move slower, the temperature is lower. Temperature is commonly measured using a thermometer, which is a device that detects changes in a physical property of a material, such as its volume, pressure, or electrical resistance, that vary with temperature.
The unit of measurement for temperature is the Kelvin (K) scale, although Celsius (°C) and Fahrenheit (°F) scales are also commonly used. The Kelvin scale is an absolute temperature scale, where 0 K represents the lowest possible temperature, known as absolute zero. The Celsius and Fahrenheit scales are relative scales that are defined by the freezing and boiling points of water at standard atmospheric pressure.
Here in the Question,
The change in temperature is 30 because the change in temperature is calculated by subtracting the initial temperature from the final temperature. In this case, the initial temperature is 100°C and the final temperature is 50°C. So the change in temperature is:
Change in temperature = final temperature - initial temperature
Change in temperature = 50°C - 100°C
Change in temperature = -50°C
The negative sign indicates a decrease in temperature, which is expected as the aluminum foil cools down from the higher initial temperature to the lower final temperature.
Therefore, it is common practice to report the absolute value of the change in temperature, which in this case is 50°C.
To learn more about the 2nd law of thermodynamics click:
#SPJ2
Answer:
50°C
Explanation:
The change in temperature is basically the difference between the initial temperature to the final temperature. So change in temperature will be:
100°C - 50°C = 50°C
Answers
Answer:
24 hours
Explanation:
Answers
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