Convert 614 cal to j. only include the numerical value in your answer. respond with the correct number of significant figures in scientific notation.

Explanation:

Given parameters:

Number of given calories = 614 cal

Note that  1cal = 4.18J

Now to convert the given calories to joule, we use the relationship below:

         Since 1Cal gives 4.18Joule of energy

                614Cal will produce 4.18 x 614;

                   2566.52J of energy.

This written as 2.57 x 10³J because it has three significant numbers of 2, 5 and 7.

In writing an operation that involves deducing the significant numbers, we simply express our answer to that shows the lowest number of significant numbers. Our problem has 3 significant numbers each and the answer is given in that regard.

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

c. heat could easily travel through the molecules in the air and escape/enter the flask. removing the air slows down the heat transfer.