233) The amount of heat obtained by the complete combustion of 1 kg of a fuel when the products of its combustion are cooled down to the temperature of supplied air is called __________ calorific value offuel.

Answer is:

higher

Thermodynamics MCQ with Answers

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234) The mass of flue gas per kg of fuel is the ratio of the

Answer is:

mass of carbon in 1 kg of flue gas to the mass of carbon in 1 kg of fuel

235) Equal volumes of all gases, at the same temperature and pressure, contain equal number of molecules. This statement is called Avogadro's law.

Answer is:

Right

Explanation:

Avagadro's Law states, "Equal volumes of all gases, at the same temperature and pressure, contain equal number of molecules."

Thus, according to Avogadro's law, 1 m³ of oxygen (O₂) will contain the same number of molecules as 1 m³ of hydrogen (H₂) when the temperature and pressure is the same.