# A 5.00 L sample of helium at STP expands to 15.0 L. What is the new pressure on the gas?

##### 1 Answer

May 7, 2018

#### Explanation:

*Boyle's Law*

*Standard Temperature and Pressure:*

273.15K with an absolute pressure of 1 atm (up to 1982)

273.15K with an absolute pressure of 100 kPa (1982- **present**)

(100 kPa)(5.00L) = (

Divide (100 kPa)(5.00L) by (15L) to isolate for

Simplify.

Source(s):

https://www.thoughtco.com/stp-in-chemistry-607533

https://en.wikipedia.org/wiki/Boyle's_law