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What is added to dry ice to make it change?
Essentially, dry ice will simply change from a solid straight to a gas through sublimation at room temperature. Nothing is needed to change the state of matter of dry ice except a higher temperature.
Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?
The dry ice will sublimate, which means it will change from a solid directly to a gas without passing through the liquid state. This process occurs due to the low temperature of dry ice (-78.5°C) compared to room temperature, causing it to transition directly to carbon dioxide gas.
Is dry ice a chemical change or a physical change?
I just had this question for a chemistry and it is a physical change
Could dry ice change the temperature in a small room?
Perhaps a small amount.
What is the specific heat of dry air and how does it affect the temperature changes in a system?
The specific heat of dry air is approximately 1.005 kJ/kgC. This means that it takes 1.005 kilojoules of energy to raise the temperature of 1 kilogram of dry air by 1 degree Celsius. The specific heat of dry air affects temperature changes in a system by determining how much energy is needed to raise or lower the temperature of the air. Higher specific heat means it takes more energy to change the temperature, while lower specific heat means it takes less energy.
What instrument do you use to measure dry bulb and wet bulb temperature?
You would use a sling psychrometer to measure both dry bulb and wet bulb temperature. The dry bulb thermometer measures the air temperature, while the wet bulb thermometer measures the temperature with evaporative cooling considered.
How does the temperature affect how fast dry ice turns into a gas?
The higher the temperature the more energy the particles of dry ice have. When they have enough energy they can break away from the solid structure and become gaseous. This process involves a Potential Energy Change NOT a Kinetic Energy Change; Therefore, the temperature will remain constant during this phase change; no matter how much you attempt to "change" the temperature. The Dry Ice may sublime faster as more energy may be "pumped" in as you try to raise the temperature.
What statement describes the phase change that when dry ice is placed in an open container at room temperature?
sublimation
Why is dry ice evaporation a physical chainge?
Dry ice is a solid form of cooled carbon dioxide. When it reaches room temperature it changes to gaseous carbon dioxide. Since, there is no change in the chemical composition of dry ice, it is called a physical change.
One variable you would change will water dry faster in cold air or hot?
The temperature of the room you put the water in.
What is the phase change called when dry ice is placed in a open container at room temperature?
The phase change is called sublimation. Dry ice goes from a solid directly to a gas without passing through the liquid phase when exposed to room temperature.
Will dry ice evaporate at room temperature?
Yes, dry ice will evaporate at room temperature. Carbon dioxide, the constituent component of dry ice, is a gas at room temperature.
