Which graph shows the relationship between the temperature and volume of agas according to charles's law? volume vs. temperature of a gasvolume vs. temperature of a gas160140140'e 20o a. 100o b.1005060o 50 100 150 200 250 3 50 100 150 200 250 300temperature (c)temperature (c)volume vs. temperature of a gasvolume vs. temperature of a gas180180160140140e 120oc. 100o d. 100600 500 100 150 200 250 30080 100 150 200 250 300temperature (c)temperature (c)

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