Question

How would I do this? Use Boyle's law to calculate the volume the gas will occupy at 23C and pressure is increased to 1.55 atm.

Answer 1

I did this:
\(\ \Huge V=k \times \frac{1}{p} ,\)
\[\ \Huge = 23 \times \frac{1}{1.55}, \]
\[\ \Huge So, V\approx14.8L. \]
\[\ \Huge However, \]\
\[\ \Huge The correct answer is 6.54 L... \]

Answer 2

23 C
isnt that the temperature?
also boyle's law
k is a constant

the equation should be
pV=pV

Answer 3

what was the initial volume and initial pressure?

Answer 4

So temperature doesn't have anything to do with the equation?

Answer 5

The inital temperature was 23C, and the inital pressure was 748 torr.

Answer 6

gosh i have lousy memory
i believe 1atm was 780 mm Hg or 780 torrs, you might wanna double check that
so initial pressure would be 748/780

the initial volume should be given to you

and temperature wont affect it unless the temperature is changing

ideal gas law
PV=nRT

Answer 7

How would I set up this eqn?

Answer 8

assuming the amount of gas you're using is constant and temperature is constant
PV=PV

Answer 9

I still can't get the correct answer...

Answer 10

can you type the full question?

Answer 11

A fixed quanitity of gas at 23C exhibits a pressure of 748 torr and occupies a volume of 10.3L .
a) Use Boyle's law to calculate the volume the gas will occupy at 23C if the pressure is increased to 1.55 atm, and
b) Use Charles's law to calculate the volume the gas will occupy if the temperature is increased to 145C while the pressure is held constant

Answer 12

1 atm= 760 torr
given the answer
the initial volume of would be 10.3 L

look at your question to see if this number appears anywhere
(748/760)V=1.55(6.54)
V=10.3

Answer 13

initial volume is 10.3L as problem state
initial pressure is 748 torr= 748/760 atm

using boyle law
PV=PV
(10.3L)(748/760 atm)=V(1.55 atm)

V=[10.3(.9842 atm/1.55 atm)]L

Answer 14

Where does the 760 come from?

Answer 15

760 torr = 1atm
unit conversion

Answer 16

look it up

Answer 17

Oh okay, so in the formula, the left side is inital, and the right side is according to (a)

Answer 18

Boyle's Law is basically PV=PV?

Answer 19

problem 2, temperature is increasing and pressure remains constant

PV=nRT
V/T= nR/P
because nR/P is just a constant value,

V/T=V/T

Answer 20

yes boyles law is PV=PV
charles law i assume is
V/T=V/T

Answer 21

This makes sense now, thanks for all your help!