Question

When x grams of carbon are heated with y grams of oxygen in a closed vessel, no solid residue is lett?

Answer 1

When x grams of carbon are heated with y grams of oxygen in a closed vessel, no solid residue is left behind. The correct statement is as under;

Must be greater than 1.33 .

Explanation:

Since in a closed container and in limited oxygen

Following reaction will take place

C+O2=CO

Using POAC

On carbon atom

x/12=1*mole of CO________(1)

On oxygen atom

2×y/32=1×mole of CO____(2)_

From 1 and 2

x/12=y/16

y/x=4/3=1.33

Answer 2

Answer:

there is no residue left because first carbon reacts with oxygen to form carbon monoxide and then carbon monoxide reacts with leftover oxygen to form carbon dioxide.