Thermodynamics Questions

• The entropy may be expressed as a function of
• Equal volumes of all gases, at the same temperature and pressure, contain equal number of molecules. This statement is called Avogadro's law.
• The molecular mass of a substance is the number of times a molecule of that substance is heavier than the hydrogen atom.
• Charles' law states that all perfect gases change in volume by __________ of its original volume at 0° C for every 1° C change in temperature, when pressure remains constant.
• For the same maximum pressure and temperature,
• For the constant pressure and heat input, the air standard efficiency of gas power cycle is in the order
• Diesel cycle consists of __________ processes.
• It is __________ to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work.
• The entropy of the universe is continually on the increase.
• The behaviour of super-heated vapour is similar to that of
• When coal is first dried and then crushed to a fine powder by pulverising machine, the resulting fuel is called
• A process, in which the gas is heated or expanded in such a way that the product of its pressure and volume remains constant, is called
• The amount of heat generated per kg of fuel is known as
• Wood charcoal is produced by heating the wood at 100°C.
• Which of the following is the correct statement?
• All perfect gases change in volume by 1 / 273th of its original volume at 0°C for every 1°C change in temperature, when the pressure remains constant. This statement is called
• Coal gas consists mainly of hydrogen, carbon monoxide and various hydrocarbons.
• The process is adiabatic, if the value of n in the equation pvn = C, is
• The throttling process is an irreversible steady flow expansion process.
• The calorific value of gaseous fuel is expressed in