Chemistry

at constant volume, the pressure in a cylinder of gas is 345 kpa at a temp of 27 celsius what would be the pressure of this cylinder of gas if the temp changes in hot sun to 47 c°

how do i solve and what's answer
will give brainliest

The Ideal Gas Law states that PV=nRT where P is pressure, V is volume, n is number of molecules, R is the gas constant and T is the temp.

As number of molecules does not change and volume of cylinder does not change, we move the constants to one side: P/T=nR/V=constant.

We get P1/T1=P2/T2

Temp should be in K so T1=27C+273=300K

T2=47C+273=320K

P2=T2*P1/T1=320*345/300

=368kPa

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o