Carbon is heated with an excess of concentrated sulphuric acid, $\text{C} + 2\text{H}_2\text{SO}_4 \rightarrow \text{CO}_2 + 2\text{SO}_2 + 2\text{H}_2\text{O}$. How many moles of gas form from $0.14\ \text{mol}$ of carbon? Count the steam as a liquid.