Home » Mechanical Engineering » Thermodynamics

Fuel technology: production of coal gas — true or false Statement: “Coal gas is obtained by mixing coal and gas at ambient conditions.” Decide whether this statement is correct.

Q: Fuel technology: production of coal gas — true or false Statement: “Coal gas is obtained by mixing coal and gas at ambient conditions.” Decide whether this statement is correct.

Concept Coal gas (town gas) is obtained by the destructive distillation of coal (or by carburation processes), not by mixing coal with an existing gas at ambient conditions. Final Answer No

Difficulty: Easy

Correct Answer: No

Explanation:

Concept
Coal gas (town gas) is obtained by the destructive distillation of coal (or by carburation processes), not by mixing coal with an existing gas at ambient conditions.

Final Answer
No

← Previous Question Next Question→

More Questions from Thermodynamics

IC engines (SI/petrol): typical compression ratio range For conventional petrol (spark-ignition) engines, select the typical compression ratio range used in practice. Choose the correct range.
Polytropic/thermodynamic processes: special case n = 0 in p vⁿ = C Given p vⁿ = constant, identify the process when n = 0. Choose the correct process name.
Air-standard Diesel cycle: effect of cut-off ratio on efficiency For a fixed compression ratio, how does the thermal efficiency of the Diesel cycle vary with the cut-off ratio? Choose the correct trend.
Stoichiometry: CO formation from C with limited oxygen Given: 1 kg of carbon requires 4/3 kg of oxygen to form carbon monoxide (CO). Compute the mass of CO produced. Choose the correct value.
Perfect (ideal) gas behavior: governing gas laws Identify which classical gas laws collectively govern the behavior of a perfect gas through the ideal gas relation. Choose the correct option.
Thermodynamics: definition of specific heat at constant volume (cᵥ) Identify what we call the heat required to raise the temperature of a unit mass of a gas by one degree when the volume is held constant. Choose the correct option.
Thermodynamic cycles: nature of Stirling and Ericsson cycles Classify the Stirling and Ericsson cycles by reversibility and idealization. Choose the correct option.
Kinetic theory of gases: formula for the most probable molecular speed Select the correct expression for the most probable speed of gas molecules in terms of absolute temperature T and molar mass M (or Boltzmann constant k and molecular mass m). Choose the correct formula.
Definition check: what do we call a sequence of processes returning to initial state? A series of operations that occurs in a fixed order and restores the system to its initial state at the end. Choose the correct term.
Fuel gas production: true/false statement about water gas formation Statement: “Water gas is obtained by passing air and a large amount of steam over waste coal at about 650°C.” Decide whether this statement is correct.

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion