The mass of carbon per kg of flue gas is given by

• A. <img src="/_files/images/mechanical-engineering/thermodynamics/260-318-1.png">
• B. <img src="/_files/images/mechanical-engineering/thermodynamics/260-318-2.png">
• C. <img src="/_files/images/mechanical-engineering/thermodynamics/260-318-3.png">
• D. <img src="/_files/images/mechanical-engineering/thermodynamics/260-318-4.png">