75101. The value of gas constant (R) in S. I. units is
75102. In the first law of thermodynamics, the total energy of the system remains constant.
75103. The efficiency of Diesel cycle increases with
75104. Coal gas is obtained by mixing coal and gas at ambient conditions.
75105. According to Avogadro's law, the density of any two gases is __________ their molecular masses, if the gases are at the same temperature and pressure.
75106. The kinetic energy of molecules of a gas becomes zero at absolute zero temperature.
75107. One kg of carbon monoxide requires __________ kg of oxygen to produce 11/7 kg of carbon dioxide gas.
75108. The absolute zero temperature is taken as
75109. The specific heat of water is
75110. The constant pressure, constant volume and constant pvn processes are regarded as irreversible process.
75111. Stirling and Ericsson cycles are
75112. When cut-off ratio is __________ the efficiency of Diesel cycle approaches to Otto cycle efficiency.
75113. A series of operations, which takes place in a certain order and restore the initial conditions at the end, is known as
75114. An isothermal process is governed by
75115. The sum of internal energy (U) and the product of pressure and volume (p.v) is known as
75116. The value of 1 mm of Hg is equal to
75117. One kg of carbon requires 4/3 kg of oxygen and produces __________ kg of carbon monoxide gas.
75118. The behaviour of a perfect gas, undergoing any change in the variables which control physical properties, is governed by
75119. The universal gas constant of a gas is the product of molecular mass of the gas and the gas constant.
75120. According to Kelvin-Planck's statement of second law of thermodynamics,
75121. According to Gay-Lussac law, the absolute pressure of a given mass of a perfect gas varies __________ as its absolute temperature, when the volume remains constant.
75122. According to Avogadro's law
75123. A process, in which the temperature of the working substance remains constant during its expansion or compression, is called
75124. Which of the following gas has a minimum molecular mass?
75125. The total energy of a molecule is shared equally by the various degrees of freedom possessed by it. This law is known as
75126. The thermodynamic property of a system is said to be an intensive property whose value for the entire system __________ the sum of their value for the individual parts of the system.
75127. The absolute pressure of a given mass of a perfect gas varies inversely as its volume, when the temperature remains constant. This statement is known as Charles' law.
75128. The fuel mostly used in steam boilers is
75129. The efficiency of Joule cycle is
75130. The hyperbolic pocess is governed by
75131. A closed system is one in which heat and work crosses the boundary of the system but the mass of the working substance does not crosses the boundary of the system.
75132. The entropy of water at 0°C is assumed to be
75133. The greater the pressure difference in throttling, the lesser is the irreversibility.
75134. During which of the following process does heat rejection takes place in Carnot cycle?
75135. Which is the incorrect statement about Carnot cycle?
75136. When two bodies are in thermal equilibrium with a third body, they are also in thermal equilibrium with each other. This statement is called
75137. The area under the temperature-entropy curve (T - s curve) of any thermodynamic process represents
75138. The free expansion process is a constant enthalpy process.
75139. The specific heat at constant volume is
75140. One kg of carbon produces __________ kg of carbon dioxide.
75141. Ericsson cycle consists of two constant pressure and two isothermal processes.
75142. The isothermal and isentropic processes are reversible non-flow processes.
75143. The blast furnace gas is a by-product in the production of pig iron in the blast furnace.
75144. The heat supplied to the gaS at constant volume is (where m = Mass of gas, cv = Specific heat at constant volume, cp = Specific heat at constant pressure, T2 - T1 = Rise in temperature, and R = Gas constant)
75145. Liquid fuels have lower efficiency than solid fuels.
75146. The heat absorbed during a polytropic process is
75147. Liquid fuels consist of hydrocarbons.
75148. The Estimate Committee of Parliament?
75149. The dual combustion cycle consists of one constant pressure, two constant volume and two isentropic processes.
75150. The general gas energy equation is (where Q1 - 2 = Heat supplied, dU = Change in internal energy, and W1 - 2 = Work done in heat units)