88201. One molecule of oxygen consists of __________ atoms of oxygen.
88202. According to kinetic theory of gases, the velocity of molecules __________ with the increase in temperature.
88203. The hard coke is obtained when carbonisation of coal is carried out at
88204. According to First law of thermodynamics,
88205. Stirling cycle consists of
88206. The ratio of molar specific heats for monoatomic gas is
88207. The general law of expansion or compression is pvn = C, The process is said to be hyperbolic, if n is equal to
88208. The state of a substance whose evaporation from its liquid state is partial, is known as steam.
88209. The value of universal gas constant is same for all gases.
88210. The numerical value of the thermal capacity and the water equivalent of the substance are the same.
88211. The area under the temperature-entropy curve (i. e. T - s curve) of any thermodynamic process represents the workdone during the process.
88212. The heating of a gas at constant pressure is governed by Charles' law.
88213. Carnot cycle consists of
88214. When a gas is heated at constant volume
88215. According to kinetic theory of gases, the kinetic energy of translation of a molecule is proportional to
88216. The amount of heat given out by the complete combustion of 1 kg of fuel is known as calorific value of solid or liquid fuel.
88217. The conditions of temperature and pressure at 0°C (273K) and 760 mm of Hg pressure are termed as __________ temperature and pressure.
88218. The value of cp/cv for air is
88219. The heat absorbed or rejected by the working substance is given by (where ds = Increase or decrease of entropy, T = Absolute temperature, and dQ = Heat absorbed or rejected)
88220. Which of the following gas has the highest calorific value?
88221. The oxygen atom is __________ times heavier than the hydrogen atom.
88222. When the gas is cooled at constant pressure,
88223. As per Charles' law, the volume of a given mass of a perfect gas varies __________ as its absolute temperature, when the absolute pressure remains constant.
88224. The principal constituents of a fuel are
88225. In an extensive property of a thermodynamic system
88226. When a gas is heated at constant pressure
88227. By decreasing the highest temperature in the Carnot cycle, its efficiency is increased.
88228. Workdone during adiabatic expansion is given by (where p1 v1, T1 = Pressure, volume and temperature for the initial condition of gas, p2, v2, T2 = Corresponding values for the final condition of gas, R = Gas constant, and γ = Ratio of specific heats)
88229. The lower calorific value of fuel may be obtained by adding the heat of steam formed during combustion to the higher calorific value.
88230. One kg of carbon monoxide requires 4/7 kg of oxygen and produces
88231. The molecular mass expresssed in gram (i.e. 1 g - mole) of all gases, at N. T. P., occupies a volume of
88232. The absolute zero pressure will be
88233. Which of the following is the correct statement?
88234. The temperature at which the volume of a gas becomes zero is called
88235. The heating of gas at constant volume is governed by
88236. 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 Boyle's law.
88237. The fuel mostly used in cement industry and in metallurgical processes is
88238. Boyle's law states that change of internal energy of a perfect gas is directly proportional to the change of temperature.
88239. The ratio of specific heat at constant pressure (cp) and specific heat at constant volume (cv) is always __________ one.
88240. The isothermal and adiabatic processes are regarded as
88241. The variables which control the physical properties of a perfect gas are
88242. The heat flows from a cold body to a hot body with the aid of an external source. This statement is given by
88243. The unit of power in S.I. units is kilowatt.
88244. Otto cycle consists of
88245. The increase in entropy of a system represents
88246. In a free expansion process,
88247. The reading of the pressure gauge fitted on a vessel is 25 bar. The atmospheric pressure is 1.03 bar and the value of 'g' is 9.81 m/s2. The absolute pressure in the vessel is
88248. The general gas equation is (where p = Pressure, v = Volume, m = mass, T = Absolute temperature, and R = Gas constant)
88249. The work ratio of simple gas turbine cycle depends upon
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