It is possible for a mixture of hot water (90 C) and ice to have ...

[Zulu123]

It is possible for a mixture of hot water (90 C) and ice to have a final equilibrium temperature of 0 C.
 
  What will be an ideal response?

Question 2

In friction, the kinetic energy of an object may be turned into the random thermal motion of the molecules making up the object.
 
  What will be an ideal response?

[parshano]

Answer to Question 1

Absolutely. It depends on the masses of ice and water. The energy lost by the hot
water is m
hot water x 4186 J/(kg C) x (90 C) = mhot water x 377 kJ. The energy gained
by the ice is mice x 333 kJ/kg. As long as mhot water x 377 kJ < mice x 333 kJ/kg the
system will remain at 0 C.

Answer to Question 2

Friction works roughly like velcro. The surfaces are sticky. The forces do
work as the objects move with respect to one another, and the work is transformed into
thermal energy.

[Zulu123]

Thanks

[parshano]

Welcome