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How much heat does it take to warm 21.0g of pure water from 90.0C to 100.0C?
Wiki User
∙ 12y ago
Heat required = mass x specific heat of water x temperature difference
Here we have heat required = 21 x 1 x 10 = 210 cals
Wiki User
∙ 12y ago
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Jose mixes 1.00g of water at 0'c with 10g of water at 100c maria mixes 10g of water at 0c with 1.00g of water at 100c who will have mixture with a higher temperature?
Assuming that the water at 1000c does not evaporate,heat capacity for water = 4.181J/ g 0c,Heat is not loss to the surroundings,Heat gained = heat lossEnergy = Mass x Heat capacity x change in temperatureFor Jose,1 x 4.181 x (A-0) = 10 x 4.181 x (100-A)Solve for AA = 90.90c ( A is the final temperature )For Maria,10 x 4.181 x (A-0) = 1 x 4.181 x (100-A)Solve for AA = 9.090cTherefore, Jose's mixture has a higher temperature.
When you heat water by which method heat travels in water?
There is more than one way to heat water, so I would not apply this to all situations, but in general, when you heat water you create convection currents which cause the hotter water to mix in with the colder water.
What makes water retain heat?
Water retains heat because of the tides
Is water a good conductor of heat or bad?
Water is a good conductor of heat.
When we heat a water in a pan by which mode does most of the heat travel in water?
Radiation
What is the relationship between heat loss and surface area?
Well, If the surface area is small, say 1 m2 . And the temperature is 1000C You lose only 2% of your heat. But if the surface area is big/largel, say 10 m2 . And the temperature is still 1000C You lose only 20% of your heat. So the bigger your surface area the bigger your heat loss is. Warning: It is a example, the calculation is not correct!
Does tile give off heat or cold?
HOT and COLD are relative terms, not absolutes. I can feel cold when other people are hot. Heat is an absolute. It is a form of energy. Tile will absorb heat if the surroundings are at a higher temperature. Tile will release heat if the surroundings are at a lower temperature. Just like water. Water at 1000C will release heat to a room of 220C, but water at 50C will absorbe heat from the same room. Nothing gives off cold. That is just the relative feeling of something that is absorbing a lot of heat from its surroundings.
Jose mixes 1.00g of water at 0'c with 10g of water at 100c maria mixes 10g of water at 0c with 1.00g of water at 100c who will have mixture with a higher temperature?
Assuming that the water at 1000c does not evaporate,heat capacity for water = 4.181J/ g 0c,Heat is not loss to the surroundings,Heat gained = heat lossEnergy = Mass x Heat capacity x change in temperatureFor Jose,1 x 4.181 x (A-0) = 10 x 4.181 x (100-A)Solve for AA = 90.90c ( A is the final temperature )For Maria,10 x 4.181 x (A-0) = 1 x 4.181 x (100-A)Solve for AA = 9.090cTherefore, Jose's mixture has a higher temperature.
Is evaporation when liquid water turns into water vapor?
Not immediately. First it turns into steam, the gaseous form of water. Depending on where the water is, it may eventually be attracted to dust in the air to form clouds, which may eventually become rain.
How many calories are needed to heat 1 liter of water by 1 degree?
200000 calories. 1 gm of water needs 1 cal(calorie) to raise it's temperature through 10C. Now, density of water = 1gm/ml at 40C and we assume that it's density is same at 00C. So we have 2000gm of water. For raising temp by 10C we need 2000 cal. For raising temp by 1000C we need 2000 x 100 cal = 200000 calories
Can boiling hot water put out fire?
The temperature of boiling water is just 1000C whereas the temperature of fire ranges from 5000C to 15000C. As the sensation of heat depends on relative temperature so fire is hotter than boiling water.
Does it take more heat to heat water or to boil water?
It takes more heat to boil water than to simply heat water. Unless the water is already at its boiling point.
What does water obsorb and realeas heat from?
Water absorb heat from sun. it releases heat into the air.
Is water a type of heat sink?
Yes! Water is a heat sink.
Is heat of vaporization for water is equal to heat on condensation of water?
yes
Why does heat dissolve in water?
Hot water merges with the cold water, and any heat is dissipated.
How does heat capacity makes water a good heat sink?
If a body of water has a high heat capacity, it can store more thermal energy making it a good heat sink.
