How many BTU's must be removed from 1,000 lbs. of tomatoes to cool from 85°F to 34°F, given a specific heat of 0.96 BTU/lb.?

To determine the amount of BTUs that must be removed from 1,000 lbs. of tomatoes to cool them from 85°F to 34°F, you need to use the formula for calculating the heat transfer based on the specific heat, mass, and temperature change:

Heat removed (BTU) = mass (lbs) × specific heat (BTU/lb°F) × temperature change (°F).

First, calculate the temperature change:

Temperature change = Starting temperature - Final temperature

= 85°F - 34°F

= 51°F.

Next, substitute the values into the heat equation:

Heat removed = 1,000 lbs × 0.96 BTU/lb°F × 51°F.

Now perform the calculations:

1. Multiply the specific heat by the temperature change:

0.96 BTU/lb°F × 51°F = 48.96 BTU/lb.

2. Multiply this result by the mass:

1,000 lbs × 48.96 BTU/lb = 48,960 BTU.

Therefore, the correct amount of BTUs that must be removed to cool the tomatoes from 85°F to 34°F is 48,960 BTUs. This matches the first