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sasho [114]
3 years ago
11

50 Points, Chem help?

Chemistry
2 answers:
ratelena [41]3 years ago
6 0
A I almost sure of that
disa [49]3 years ago
6 0

Answer:

A) 1,600 J

Explanation:

<u>Given:</u>

Mass of ethanol, m = 60.0 g

Initial temperature, T1 = 70 C

Final temp, T2 = 43 C

<u>To determine:</u>

Heat (q) lost as ethanol is cooled

<u>Formula:</u>

The heat lost by a substance is given as:

q = -mc\Delta T = -mc(T2-T1)

In the case of ethanol at 70 C, it exists as a liquid therefore, the specific heat capacity c = 1.0 J/gC

q = -60.0 g*1.0 J/gC*(43-70)C= 1620 J

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