0
If it takes 300 calories of heat to change the temperature of water from 10ºC to 70ºC. What is the mass of the water?
Madison Lancaster
cd
Madison Lancaster
Add your answer:
Earn +20 pts
Why does melting ice require much less energy than boiling the same mass of water?
Because Water's latent heat of fusion is much less than its latent heat of vaporization. In English: It takes less energy to change a gram of ice at 0°C into a gram of water at the same temperature than it takes to change a gram of water at 100°C into a gram of steam at the same temperature.
When heated water changes temperature very slowly but gold changes temperature very quickly this is because water has a higher?
Heat capacity, it takes more energy to raise the temperature of water 1o than it does gold 1o. That's why if you apply the same amount of heat to gold and water the gold will heat up faster (i.e., change temperature quicker).
Is thermal energy measured in Celsius?
No. Temperature is measured in degrees celsius. Thermal energy, which causes temperature change, is measured in calories or british thermal units. A calorie, not a food calorie, is the amount of heat necessary to raise 1 ml of water 1 degree celsius. 252 calories = 1 btu. 1 food calorie is actually equivalent to 1000 calories of heat.
What is the relationship between the release of energy in the form of heat and calories?
A calorie is essentially energy stored in the form of food. It takes one calorie to increase the temperature of 1 kilogram of water by 1 degree Celsius.
Is water a good conductor for heat?
Water has a high specific heat capacity (relative to metals and other conductors), making it a poor conductor of heat (takes too much energy to change the temperature).
How much heat energy is required to change a block of ice with a mass of 55.6 grams at -11.9 degrees Celsius to steam at 123 degree Celsius?
For one gram of ice, it takes 11.9 calories to change the temperature to 0°, 80 calories to melt the ice, 100 calories to raise the water temperature to 100°, 540 calories to change the water to steam, and 23 calories to raise the steam temperature to 123°. That's a total of (11.9 + 80 + 100 + 540 + 23) calories or 754.9 calories. So to do the same to 55.6 grams of ice requires 55.6 times as much heat. 754.9 calories times 55.6 equals approximately 41972 calories (about 42 kilocalories).
How much calories does cold water have?
Water has no calories no matter what the temperature is
How many calories of heat energy are required to melt 10 grams of ice at 0 degrees celciaus?
103 calories. The heat of fusion of water is 80 cal/g and it takes one calorie to change the temperature of 1 g of water by 1 degree. 80+23=103 calories
Which change takes place during the boiling water?
During boiling of water,water changes its state from liquid to gas due to a change in temperature. Therefore it is a physical change.
How many calories of heat needed to raise temperature of 8.1 g of water 20C?
1 calorie is defined as the amount of energy needed to raise the temperature of 1 gram of water by 1C, so... It takes 8.1 calories to raise your 8.1 grams by 1C, but you need to raise it 20C. 8.1*20=162. 162 calories is the answer you are looking for.
What occurs when the temperature of 10.0 grams of water is changing from 15.5c to 14.5c?
The water releases 42 joules.The formula for heat is: q = mCT.The temperature of the water decreases by 1°C. The number of calories required for this change is the product of the mass of the substance, its specific heat, and the temperature change: 10 g × 1°C × 4.2 J/°C. g = 42 joules.
How does the temperature of water change as how does the temperature of water change as the bulls it boils?
The teamperature does not change
What is the amount of heat to change liquid into solid at constant temperature?
To change a liquid into solid at constant temperature, an amount of heat is released equal to the latent heat of that liquid. For water it is about 80 calories per gram.
How many calories does it take to raise the temperature of a cup of water?
It depends on what temperature is is at and how much water there is.
During a change of state why doesnt the temperature of the substance change?
The temperature of a substance depends on the amount of heat energy in it. So when you heat up water its temperature rises. However, when a substance changes state - when water boils, for instance - liquid water uses heat to become a gas. The amount of heat it takes to convert one gram of water (at 100 deg C) to gaseous water (at 100 deg c) is 539 cal. That is, taking a gram of water from 99 deg C to 100 deg C consumes 1 calorie, but taking that liquid water to gaseous water takes another 539 calories. The heat overcomes the intermolecular attractive force - the cohesion of the liquid water molecules. But when you add the 540th calorie the gaseous water's temperature goes up to 101 deg C. That is called the heat of vaporization. Similarly, the heat of fusion is the amount of heat energy it takes to liquefy ice - and the temperature stays at 0 deg C when you add nearly 80 calories to turn ice into liquid water. In other words, melting ice takes as much energy as it would take to raise the temperature of liquid water from 0 deg C to 79.7 deg C.
If it takes 31500 joules of heat to warm 750 g of water what was the temperature change?
10 degrees Celsius
Where does a physical change takes place?
When a physical change takes place, a certain element or chemical will change its shape and in many cases, the volume too. Water takes the shape of the mold casing once it freezes.
