50 points, chem ?

some thermodynamic properties of ethanol are listed in the table.
thermodynamic propertiesproperty
value c (solid) 0.5 j/g °c c (liquid)
1.0 j/g °c c (gas) 2.0 j/g °c
melting point −114 °c
boiling point 78 °c
how much heat is released when 60.0 g of ethanol cools from 70 °c to 43 °c?
a. 1,600 j
b. 1500 j
c. 810 j
d. 750 j

A) 1,600 J

Explanation:

Given:

Mass of ethanol, m = 60.0 g

Initial temperature, T1 = 70 C

Final temp, T2 = 43 C

To determine:

Heat (q) lost as ethanol is cooled

Formula:

The heat lost by a substance is given as:

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

zfoods? ok, pressure is used to keep the heat inside and to keep the food perfect.