201. With increase in temperature, the equilibrium __________ rises in case of endothermic reaction.
202. In case of a consecutive unimolecular type first order reaction , the concentration of component __________ increases continuously with time.
203. Enzymes (a protein) are catalysts found in organisms. Its efficiency of catalysing a reaction is due to its capacity to lower the activation energy of the reaction. The enzyme ptyalin used for food digestion is present in
204. Considering the endotheomic dissociation of CaCO3 in a closed vessel (CaCO3 CaO + CO2), the pressure of CO2 increases, if
205. The exit age distribution of fluid leaving a vessel is used to know the
206. From Arhenius law, a plot of loge K versus 1/T gives a straight line with a slope of (-E/R). The unit of E/R is
207. In the converter of the contact process for the manufacture of H2SO4 the equilibrium conversion of SO2 __________ (A) __________ with increase in temperature and __________ (B) __________ with increase in the mole ratio of SO2 to air.
208. For the irreversible elementary first order reaction in parallel viz. , a plot of Cy Vs. Cz will give a straight line having a slope of
209. The time needed to achieve the same fractional conversion for particles of different sizes (d) when chemical reaction controls, is proportional to
210. A balanced chemical reaction equation conforms to the law of
211. An exothermic reaction takes place in an adiabatic reactor. The product temperature __________ reactor feed temperature.
212. Reverse reaction in a chemical equilibrium is favoured by the
213. The equilibrium constant for the reversible reaction, , is affected by the
214. Sum of the powers of the concentration terms in the rate equation is called the __________ of the reaction.
215. During manufacture of H2SO4, the oxidation of SO2 to SO3 by oxygen is an en-dothermic reaction. The yield of SO3 will be maximised, if the
216. The role of a catalyst in a chemical reaction is to change the
217. The vessel dispersion number (D/μL) for plug flow is
218. Molecularity of a reaction
219. BET apparatus is used to determine the
220. Carrier in a catalyst increases its
221. When the reaction is dominated by in-traparticle diffusion, the apparent order of reaction (nD) as measured is related to the true order (n) as
222. When the reaction occurs in the diffusion controlled region, the apparent activation energy as measured is only __________ the true value.
223. An isothermal irreversible reaction is being carried out in an ideal tubular flow reactor. The conversion in this case will __________ with decrease in space time.
224. An elementary liquid phase decomposition reaction is to be carried out in a CSTR. The design equation is
225. Kinetics of a solid catalysed reaction can best be studied in a __________ reactor.