Question

According to Boyle's law, PV = k, what was the pressure to the nearest tenth at the time of the first measurement
given the following information?
V1 = 7,450 mL
P2 = 8.25 atm
V2 = 1,645 mL
(1 point)

Answer 1

or more quickly
P2 V2 = P1 V1
so P1 = P2 * V2/V1
= 8.25 * ( 1645 / 7450 )
= 1.82 sure enough

Answer 2

Using Boyle's law equation PV = k, we can set up the equation using the first and second measurements:
(P1)(V1) = k
(P2)(V2) = k

Substitute V1 = 7,450 mL and V2 = 1,645 mL:
(P1)(7,450) = k
(8.25)(1,645) = k

Solve for k:
(P1)(7,450) = (8.25)(1,645)
(P1) = (8.25)(1,645) / 7,450
P1 = 1.82 atm

Therefore, the pressure at the time of the first measurement was approximately 1.8 atm.

Answer 3

Yes, that is a quicker way to solve the problem using Boyle's law formula. Thank you for providing an alternative method!