Answer
$Q=-43cal$
Work Step by Step
We know that
$Q=\Delta E_{int}+W$
We plug in the known values to obtain:
$Q=-30-13=-43cal$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.