As exact conversions, the following information is known: 1 mile = 5280 ft.
12 in. = 1 ft.
3 ft. = 1 yard
1 hr = 60 min
1 day = 24 hr

A particular species of bird can fly for 36.0 hours straight, covering a distance of 158 miles. At this rate, how many feet does the bird travel in 43.0 min?

16607 and 5/9 feet

Explanation:

First, let's find the how fast the bird travels in an hour. Finding the miles per hour: 158/36=79/18. Convert this to miles per minute to find the distance after 43 mins. Multiplying 79/18 by 1/60, 79/1080. Multiplying this by 43 to find the distance traveled; 3397/1080. As 1 mile is equal to 5280 feet, multiply by 5280 to find distance in feet. Once this is all done, you get 149468/9, or 16607 and 5/9 feet.

"standard molar enthalpy:

h2o ( liquid water ) : - 285.8 kj/mole

h2o ( water vapor ) : - 241.8 kj / mole.

δhrxn = - 241. 8 - ( - 285.8 )= -241.8 + 285.8 = 44.0

answer: 44.0 kj"

i believe the answer is 5,000