Solid water (ice) is slowly warmed from a very low temperature. a. What minimum external pressure p1 must be applied to the solid if a melting phase transition is to be observed?
b. Above a certain maximum pressure p2, no boiling transition is observed. What is this pressure?

What minimum external pressure p1 must be applied to the solid if a melting phase transition is to be observed?

p1 = ? Pa

Part B

Above a certain maximum pressure p2, no boiling transition is observed. What is this pressure?

p2 = ? Pa

Explanation:

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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