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In a newly developed innovative idea brought up by CSIR in India, gas turbine exhaust gas are being utilized to convert feedwater into steam. Certain data of the experiment are as follows: mass flow rate of exhaust gas = 40 kg/hr, enthalpy of exhaust gas at the time of their exit from gas turbine is 600 kJ/kg, steam turbine output as measured by brake dynamometer = 60 hp-sec, thermal efficiency of steam power plant is 0.25, efficiency of exhaust gas in converting feedwater into steam is taken as 50%. Find the enthalpy of exhaust gas remaining after they generate steam from feedwater?
The vapor pressure of the solvent decreased by 10 mm Hg, when a non-volatile solute was added to the solvent. The mole fraction of the solute in the solution is 0.2. What should be the mole fraction of the solvent, if the decrease in vapor pressure of the solvent is required to be 20 mm Hg.?
Consider the following statements in respect of a vapour-absorption refrigeration cycle: 1. The absorption refrigeration cycle is generally used when waste heat is a available from an existing source or when free energy like solar energy is to be used. 2. There are no moving parts in the absorption refrigeration plant except a small liquid pump. 3 the value of the coefficient of performance is nearly the same in both vapour-absorption and vapour-compression refrigeration plants. Which of the above statements are correct?
Which of the following statements about physical absorption are correct? Statement 1: Example for physical absorption is the absorption of carbon dioxide into water. Statement 2: Polar interactions between water and the molecules of the solid play an important role in physical absorption.
Which one of the following sets is incorrect to show the inter-relationships among price elasticity coefficient, change in price and change in total revenue ? Price elasticity coefficient Change in price Change in Total Revenue 1) Zero Increase Decrease Increase Decrease (2) Less than 1 Increase Decrease Decrease Increase (3) Equal to 1 Increase Decrease No change No change (4) More than 1 Increase Decrease Decrease Increase  
With increase in the liquid flow rate at a fixed gas velocity in a randomly packed counter current gas-liquid absorption column, the gas pressure drop
Which of the following statements regarding the adsorption of a gas on a solid is correct? I. The amount of gas adsorbed increases with increase in pressure. II. The amount of gas adsorbed increases with increase in temperature. III. The amount of gas adsorbed increases with increase in the area of the adsorbent.
With increase in gas rate, the number of transfer units, NtoG, for a fixed degree of absorption by a fixed amount of solvent
With increase in solvent rate, the number of transfer units, NtoG, for a fixed degree of absorption from a fixed amount of gas
The absorption factor is defined as (where, L = liquid flow rate, G = gas flow rate and, m = slope of the equilibrium line)