Matter in Our Surroundings_5

Solid carbon dioxide is known as dry ice. What is the first statement of this audio clip?

• Dry Ice is generally named for solid carbon dioxide (CO2).

• This is called as solid carbon dioxide because it does not melt into a liquid when heated. it changes directly into a gas (a process known as sublimation).

• Dry Ice is manufactured by compressing and cooling gaseous CO2 under high pressure to initially produce liquid CO2.

• Due to its extremely low temperature of -78°c, dry ice is often used as an alternative to refrigeration for foodstuffs and medical supplies.

Solid carbon dioxide is known as dry ice. What is the second statement of this audio clip?

• Dry Ice is generally named for solid carbon dioxide (CO2).

• This is called as solid carbon dioxide because it does not melt into a liquid when heated. it changes directly into a gas (a process known as sublimation).

• Dry Ice is manufactured by compressing and cooling gaseous CO2 under high pressure to initially produce liquid CO2.

• Due to its extremely low temperature of -78°c, dry ice is often used as an alternative to refrigeration for foodstuffs and medical supplies.

Solid carbon dioxide is known as dry ice. What is the third statement of this audio clip?

• Dry Ice is generally named for solid carbon dioxide (CO2).

• This is called as solid carbon dioxide because it does not melt into a liquid when heated. it changes directly into a gas (a process known as sublimation).

• Dry Ice is manufactured by compressing and cooling gaseous CO2 under high pressure to initially produce liquid CO2.

• Due to its extremely low temperature of -78°c, dry ice is often used as an alternative to refrigeration for foodstuffs and medical supplies.

Solid carbon dioxide is known as dry ice. What is the fourth statement of this audio clip?

• Dry Ice is generally named for solid carbon dioxide (CO2).

• This is called as solid carbon dioxide because it does not melt into a liquid when heated. it changes directly into a gas (a process known as sublimation).

• Dry Ice is manufactured by compressing and cooling gaseous CO2 under high pressure to initially produce liquid CO2.

• Due to its extremely low temperature of -78°c, dry ice is often used as an alternative to refrigeration for foodstuffs and medical supplies.

Why is ice at 273 Kelvin more effective in cooling than water at the same temperature? What is the first statement of this video clip?

• Ice at 273 Kelvin will absorb heat energy on latent heat from the medium to overcome the fusion to become water.

• Hence the cooling effect of ice is more than the water at the same temperature

  
  

• because water does not absorb this extra heat from the medium

Why is ice at 273 Kelvin more effective in cooling than water at the same temperature? What is the second statement of this video clip?

• Ice at 273 Kelvin will absorb heat energy on latent heat from the medium to overcome the fusion to become water.

• Hence the cooling effect of ice is more than the water at the same temperature

• because water does not absorb this extra heat from the medium

Why is ice at 273 Kelvin more effective in cooling than water at the same temperature? What is the third statement of this video clip?

• Ice at 273 Kelvin will absorb heat energy on latent heat from the medium to overcome the fusion to become water.

• Hence the cooling effect of ice is more than the water at the same temperature

• because water does not absorb this extra heat from the medium