Agas has a pressure of 0.370 atm at 50.0 °c. what is the pressure at 22 °c, assuming volume remains constant?
a.) 0.34 atm
b.) 0.58 atm
c.) 0.74 atm
d.) 0.98 atm

A.) 0.34 atm

Explanation:

Change the Celsius to Kelvin:

50.0 C = (273 + 50) = 323 K

22.0 C = ( 273 + 22) = 295 K

Gay-Lussac's Law: (P1/T1) = (P2/T2)

Rearranging that to solve for P2 gives

P2= (P1 x (T2/T1))

=0.370 atm x (295 K / 323 K)

= 0.338 atm

Answer A

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.