A 3.84-kg block of ice at 0.0°C is heated until it turns into water at 68.5°C. How much heat is used in the process?

Heat required to raise the temperature of ice is given as

Explanation:

Heat required to raise the temperature of the object is given as

here we know that

m = 3.84 kg

L = 335000 J/kg[/tex]

s = 4186 J/C K

now we have

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.

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