A closed container has within it 20 lbm of liquid and 20 lbm of vapor at 400 o F. Determine the total amount of heat, in BTU, that must be added to raise the temperature to 425 o F.

Ineed with my science work! it’s due tomorrow!

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

What is the subscript for oxygen in its molecular formula