Why did the skater go fast at point B

The skater went down the hill which increased his speeed and it caused him to go fast at point b.

Explanation:

hope this helps.

> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.

i think its 5049.

i hope this !