the latent heat of vaporization for ethyl alcohol is 854 j/g. the amount of energy, rounded to the nearest…
the latent heat of vaporization for ethyl alcohol is 854 j/g. the amount of energy, rounded to the nearest whole number, needed to change 5.20 grams of ethyl alcohol from a liquid to a gas is j.
Answer
Explanation:
Step1: Identify the formula
The formula for heat energy $Q$ in a phase - change process is $Q = mL$, where $m$ is the mass and $L$ is the latent heat.
Step2: Substitute the given values
Given $m = 5.20\ g$ and $L=854\ J/g$. Then $Q=5.20\times854$.
Step3: Calculate the result
$Q = 5.20\times854=4440.8\ J$.
Step4: Round the result
Rounding $4440.8$ to the nearest whole number gives $4441\ J$.
Answer:
$4441$