# High School Physics Competition: Change in Entropy

1. ### ReneG

4
During a physics competition, I came across this question.
My work was
\begin{align*}\Delta S &= \frac{Q}{T} \\ \Delta S &= \frac{1.25 \times 10^3 \, \mathrm{J}}{348 \, \mathrm{K}} \\ \Delta S &= 3.59 \,\,\mathrm{\left( J/K\right )} \end{align*}

but I was stuck in between two answer choices

c) + 3.59 J/K
d) # 3.59 J/K

I had no idea what the hashtag meant, so I skipped it. Can someone clear this up for me?

2. ### dipole

525
Honestly I have no idea, but certainly the change in entropy is positive, so answer c) is correct. Maybe it's a misprint?

3. ### rrnmarie

3
I guess what dipole said it's right 'cause it sometimes happens

Last edited: Sep 30, 2013
4. ### ReneG

4
For anyone who was wondering, the hashtag just meant "negative". Thank you dipole.