Stoichiometry The heat evolved in the combustion of benzene is represented by the equation: C₆H₆ + 7.5 O₂ = 6CO₂ + 3H₂O, ΔH = 3264.6 kJ/kg. mole The heat energy change, when 39 gm of C₆H₆ is burnt in an open container, will be __________ kJ/kgmole. +816.15 -2448.45 +1632.3 -1632.3 +816.15 -2448.45 +1632.3 -1632.3 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The effect of pressure on the heat capacity of the gases __________ is negligible. Neither A nor B At pressure below one atmosphere Below the critical temperature Both A & B Neither A nor B At pressure below one atmosphere Below the critical temperature Both A & B ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry 40 gms each of the methane and oxygen are mixed in an empty container maintained at 40°C. The fraction of the total pressure exerted by oxygen is 1/3 1/2 1/4 2/3 1/3 1/2 1/4 2/3 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Heat capacity of air can be approximately expressed as, Cp = 26.693 + 7.365 x10⁻³ T, where, Cp is in J/mole.K and T is in K. The heat given off by 1 mole of air when cooled at atmospheric pressure from 500°C to - 100°C is 18.11 kJ 18.33 kJ 16.15 kJ 10.73 kJ 18.11 kJ 18.33 kJ 16.15 kJ 10.73 kJ ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Which of the following terms of Vander Walls equation of state for a non-ideal gas accounts for intermolecular forces? (V - b) RT (p +a/v²) 1/RT (V - b) RT (p +a/v²) 1/RT ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A car tyre of volume 0.057 m³ is inflated to 300 kPa at 300 K. After the car is driven for 10 hours, the pressure in the tyre increases to 330 kPa. Assume air is an ideal gas and Cv for air is 21 J/mole.K. The change in the internal energy of air in the tyre in J/mole is 630 760 880 380 630 760 880 380 ANSWER DOWNLOAD EXAMIANS APP
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