Question

Why is salt mixed in with ice in an ice cream maker? Select all that apply

A) the salt lowers the freezing point of the ice-water mixture.

B) the salt raises the freezing point of the ice water mixture.

C) The ice cream freezes faster.

D) The salt prevents the ice cream from freezing ununiformly.

Answer 1

A , Just think of how ice melting salt impacts the roads. Similarly, adding salt to the ice surrounds the ice cream base

Answer 2

A) The salt lowers the freezing point of the ice-water mixture.

Step-by-step explanation:

Ice cream freezes at a lower temperature than water because the presence of sugar and fat prevents the formation of ice crystals, necessitating a lower temperature to achieve freezing. Ice by itself cannot adequately chill the ice cream base because it will melt before the base has cooled enough. Water's freezing/melting point can be lowered with the use of salt. Just consider the effects salt has on the roadways when it melts ice. Similar to the last example, adding salt to the ice that surrounds the ice cream base creates a temperature that is chilly enough to prevent the ice cream within from melting completely before it has a chance to thicken and freeze.

Thanks,

Eddie.