A scalpel made of surgical stainless steel is sterilized by heating in a flame and then quenching in 175 g of ethyl alcohol. The
alcohol is initially room temperature, 23.7°C, warms to 38.6°C. The specific heat capacity of ethyl alcohol is 2.4 J/(g'K) Assuming
there is no heat lost to the surroundings, calculate the heat released by the alcohol.
-6300 J
-3600 J
6200 J
7800 J

-6300J

Explanation:

The quantity of heat required to raise the temperature of a substance per unit of mass could be written as:

Q = -m×C×ΔT

Where Q is heat, m is mass of substance, C is specific capacity and ΔT is change in temperature.

Replacing:

Q = -175g × 2.4J/gK × (38.6°C-23.7°C)

Q = -6258J ≡ -6300J

lol for the pointsss

explanation:

two years ago, when picking flowers in the mountains back of yosemite valley, i found a book. it was blotted and storm-beaten; all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however; many of the inner pages were well preserved. and although all were more or less stained and torn, whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today; its granite pages have been torn and blurred by the same storms that wasted the castaway book.

two years ago, when picking flowers in the mountains back of yosemite valley; i found a book. it was blotted and storm-beaten, all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however, many of the inner pages were well preserved. and although all were more or less stained and torn; whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today, its granite pages have been torn and blurred by the same storms that wasted the castaway book.