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How many kJ of energy are required to melt 30.7 g of ice The heat of fusion of water is 6.02 kJmol. The temperature remains constant at 0 and degC. kJ?
Wiki User
∙ 6y ago
10,267 kJ are needed
Wiki User
∙ 6y ago
Wiki User
∙ 10y ago110001888
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What happen to the temperature boiling water as it's boil?
When water is boiling, the temperature remains constant, as the energy it is absorbing is being used to change the liquid water into water vapor.
Why does the temperature remains constant during the change of state?
During the time of change of state,the heat or temperature is used to increase the potential energy and there by change of state.This time there will be no change in temperature.
Why do changes of state happen at a constant temperature?
It takes energy to alter temperature, and it also takes energy to change state, at least in the direction of more energetic states, which is to say, to melt a solid or to vaporize a liquid. If energy is being consumed by the change of state itself, then there is no energy available to change the temperature. So the temperature remains constant. In practice, this means for example that things boil at the boiling point. Boiling water is always exactly 100o Celsius. It can get no hotter until it is all boiled. The steam, of course, can then get hotter.
Why cooling curve of crystalline solids have breaks?
Cooling curve of Crystalline solids have breaks, which corresponds to the begining and ends of the crystallisation process. The temperature remains constant during crystallization as the process is accompained by some liberation of energy, which compensates for the loss of heat and causes the temperature to remain constant. -Damodar
What happens to the thermal energy of a substance during a physical change of state?
it will increase or decrease depending on the states. from solid --> liquid or liquid --> gas it is positive and endothermic, and thermal energy is increasing from liquid --> solid or gas --> liquid it is negative and exothermic, and thermal energy is decreasing
Where did the heat of dry ice go if its temperature remains constant?
Energy is required to break intermolecular bonds and is released when they are formed; thus when a substance is heated, at some point it absorbs energy but its temperature does not increase, and vice versa. This temperature is its melting/boiling point.
The heat of fusion is defined as the energy required at constant temperature to change 1 unit mass of a?
The heat of fusion is the amount of energy required to change 1 unit mass of a solid to a liquid at constant temperature.
What happen to the temperature boiling water as it's boil?
When water is boiling, the temperature remains constant, as the energy it is absorbing is being used to change the liquid water into water vapor.
How does temperature affects the body?
For mammals very little, except for the energy expenditure required to maintain a constant internal temperature.
Boiling liquid maintains a constant temperature because?
The boiling point temperature remains constant because liquids evaporate at this point. If the temperature drops the liquid will no longer boil. At a higher temperature the vapor becomes hotter, not the liquid.
What Happens to the temperature when a chemical changes state?
It remains constant, since all the energy goes into changing the intermolecular bonds.
Total amount of energy in any closed isolated system remains what?
If it is a closed system, the total energy remains equal.
Why does the temperature remains constant during the change of state?
During the time of change of state,the heat or temperature is used to increase the potential energy and there by change of state.This time there will be no change in temperature.
Energy input remains constant and voltage remains the same in a curcit but current decreses what must be happening?
- If energy input is constant, then (E x I) is constant. - If 'E' is constant, then 'I' must also be constant. - Your ammeter must be failing.
As heat is added to a substance undergoing a phase change the temperature remains constant because the energy is being used to?
Overcome intermolecular forces
Does the first law of thermodynamic's energy increase or decrease?
Energy remains constant.
What is Boltzman's constant?
The Boltzman's constant is the physical constant relating to temperature to energy.
