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stiv31 [10]
3 years ago
6

A patient arrives in the emergency with a burn caused by steam. Calculate the heat that released when 17.7 g of steam

Chemistry
1 answer:
MaRussiya [10]3 years ago
3 0

The steam releases 39.9 kJ when it condenses..

The steam condenses and transfers its energy to the skin.

<em>q = m</em>Δ<em>H</em>_cond = 17.7 g × (-2257 J/1 g) = -39 900 kJ = -39.9 kJ

The negative sign shows that the steam is releasing energy

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Read 2 more answers
A cable raises a mass of 158.0 kg with an acceleration of 1.8 m/s2. What force (in N) of tension is in the cable?
ki77a [65]

Answer:

Force of Tension = 1832.8  N

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Any mass of object supported or pulled by a rope or cable  is subject to a force of tension. Since the mass is raised by a cable, tension is involved.

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Tension can be represented as

T = (m × g) + (m × a)

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T = mg + ma

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8 0
3 years ago
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