Question

Найти объем газа, который выделился при сжигании 10 тонн угля

Answer 1

С + О₂ = СО₂

 

M(С)= 12 г/моль

Vm(СО₂)= 22,4 л/моль

m(С)= 10 т = 10⁶ г

V(СО₂)= х л

 

12 г угля дают 22,4 л СО₂

10⁶ г угля дают х л СО₂

 

$x=\frac{10^{6}\cdot22,4}{12}\approx1,87\cdot10^{6}$ л СО₂

Answer 2

Calculating the Volume of Gas Produced by Burning 10 Tons of Coal

To calculate the volume of gas produced by burning 10 tons of coal, we can use the chemical equation for the combustion of coal, which produces carbon dioxide (CO2) and water vapor (H2O) as byproducts.

The balanced chemical equation for the combustion of coal is: C + O2 → CO2

From this equation, we can see that 1 mole of carbon (C) reacts with 1 mole of oxygen (O2) to produce 1 mole of carbon dioxide (CO2).

Using this information, we can calculate the volume of CO2 produced when 10 tons of coal are burned.

Calculation

- The molar mass of carbon (C) is approximately 12 g/mol. - The molar volume of a gas at standard temperature and pressure (STP) is 22.4 L/mol.

Given that 1 ton is equal to 1000 kilograms, we can calculate the number of moles of carbon in 10 tons of coal and then use this to find the volume of CO2 produced.

Step 1: Calculate the number of moles of carbon in 10 tons of coal. - 10 tons = 10,000 kg - Calculate the number of moles of carbon using the molar mass of carbon: - Number of moles = Mass / Molar mass - Number of moles = 10,000,000 g / 12 g/mol - Number of moles ≈ 833,333.33 moles

Step 2: Calculate the volume of CO2 produced. - Since 1 mole of carbon produces 1 mole of CO2, the number of moles of CO2 produced is also approximately 833,333.33 moles. - Using the molar volume of a gas at STP, we can calculate the volume of CO2: - Volume = Number of moles * Molar volume - Volume ≈ 833,333.33 moles * 22.4 L/mol - Volume ≈ 18,669,333.32 L

Therefore, approximately 18,669,333.32 liters of carbon dioxide gas would be produced by burning 10 tons of coal.

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