Thermodynamics Questions

• A good fuel should have __________ ignition point.
• Which of the following statement is correct according to Clausis statement of second law off thermodynamics?
• 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.
• Relation between cp and cv is given by (where cp = Specific heat at constant pressure, cv = Specific heat at constant volume, γ = cp/cv, known as adiabatic index, and R = Gas constant)
• The elements are made up of minute and chemically invisible particles as atoms.
• In a steady flow process, the ratio of
• The __________ is obtained when carbonisation of coal is carried out at 500° to 700° C.
• The property of the system, whose value for the entire system is equal to the sum of their values for the individual parts of the system is called extensive property
• The thermal efficiency of an ideal gas turbine plant is given by (where r = Pressure ratio)
• Which of the following is a reversible non-flow process?
• The bomb calorimeter is used for finding the __________ calorific value of solid and liquid fuels.
• The efficiency of the Carnot cycle may be increased by
• Carnot cycle has maximum efficiency for
• According to Regnault's law, the specific heat at constant pressure (cp) and specific heat at constant volume (cv) __________ with the change in pressure and temperature of the gas.
• The heat and work are mutually convertible. This statement is called __________ law of thermodynamics.
• The unit of energy is S. I. units is
• Select the correct statement as per Charles' law
• Briquetted coal is produced from the finely ground coal by moulding under pressure with or without a binding material.
• Which of the following statement is correct?
• The polytropic index (n) is given by