Question

During the 1980s, the average emission of carbon from burning fossil fuels on Earth was 5.438 petagrams (Pg) of carbon per year in the form of CO2. (a) How many kg of C were placed in the atmosphere each year

Answer 1

`1.99393* 10^(13)\ kg`

Step-by-step explanation:

`1\ petagram=10^(15)\ g`

`\\\Rightarrow 5.438\ petagram=5.438* 10^(15)\ g`

In kg

`5.438* 10^(15)\ g=(5.438* 10^(15))/(10^3)\\ =5.438* 10^(12)\ kg`

12 grams of carbon is present in 44 grams of Carbon dioxide

`(44* 5.438* 10^(12))/(12)=1.99393* 10^(13)\ kg`

The carbon mass is
`1.99393* 10^(13)\ kg`