Define: (a) Stoichiometric Ratio (b) Humid heat (c) Heat capacity
[3 marks]What is the difference between fundamental units and derived04 units?
[ marks]Aheat exchanger for cooling a hot hydrocarbon liquid uses 10000 kg/h of cooling water, which enters the exchanger at 294 K. The hot oil at the rate of 5000 kg/h enters at 423 Kand leaves at 338 Kand has an average heat capacity of 2.5 kJ/kg K. Calculate the outlet temperature of water.
[7 marks]Convert 2 atm to mm Hg.
[3 marks]Write in brief about heat of reaction (∆H ). R
[4 marks]An aqueous solution of K CO is prepared by dissolving 44 g K CO in 100 g water at 293 K. Find, Molarity, Normality and Molality of the solution. Take density of solution as 1.3 kg/L.
[7 marks]Estimate the density of chlorine gas at temperature of 503 Kand 15.2 MPa pressure by using (i) the ideal gas law and (ii) the van07 der Waals equation. Take a = 0.6354 (m3)2 MPa/(kmol)2 and b = 0.0543 m3/kmol.
[ marks]How many grams of carbon are present in 264 g of CO ?
[3 marks]Differentiate between sensible heat and latent heat
[4 marks]What are the methods of expressing the composition of mixtures07 and solutions?
[ marks]Write in brief about Amagat’s law with its expression.
[3 marks]H SO solution has a molarity of 11.24 and molality of 94.24 Calculate the density of solution.
[ marks]It is desired to make up 1000 kg of a solution containing 35% by weight of a substance ‘A’. Two solutions are available, one containing 10 weight percent ‘A’ and other containing 50 weight07 percent of ‘A’. How many kilograms of each solution will be required?
[ marks]Write short note on recycling, bypassing and purging operations.
[ marks]Give classification of material balance problems.
[4 marks]Agas mixture has the following composition by volume: SO =8.5%, O =10% and N =81.5%222 Find (a) the density of gas mixture at a temperature of 473 K (200 C) and 202.65 kPa g and (b) composition by weight. OR1
[ marks]Define: (1) standard heat of formation (2) standard heat of reaction (3) adiabatic flame temperature
[ marks]Explain: Limiting Reactant, Excess reactant and percent excess04 reactant.
[ marks]Write a short note on Hess’s law of constant heat summation.07
[ marks]Define: i) Dry-bulb temperature ii) Wet-bulb temperature.
[3 marks]Write a short note on proximate and ultimate analysis of coal.
[4 marks]Heat capacity data for gaseous SO is given by the following2 equation:07 Calculate the heat needed to raise the temperature of 1 kmol pure Sulphur dioxide from 300 Kto 1000 K.
[ marks]Explain adiabatic reaction with a suitable example.
[3 marks]Write in detail about calorific values of fuels.
[4 marks]The analysis of a refinery gas by volume is: H : 74%, CH : 13.5%, C H : 7.4%, C H : 3.6%, n-C H : 1.2% and n-C H : 0.3%.512 Data: Component -∆Hᵒ (gross) , -∆Hᵒ (net) , kJ/mol C C kJ/mol CH 890.65 802.624 C H 1560.69 1428.6426 C 3 H 8 2219.17 2043.11 n-C H 2877.40 2657.32410 n-C H 3535.77 3271.67512 ∆Hᵒ of H O (g) = -241.82 kJ/mol at 298 K (25ᵒ C) f ∆Hᵒ of H O (l) = -285.83 kJ/mol at 298 K (25ᵒ C) f Specific volume at 298 Kand 101.3 kPa = 24.465 m3/kmol. Calculate the GCV and NCV of the refinery gas in kJ/mol, kJ/kg and kJ/m3.
[2 marks]