Stoichiometry 1 kg of calcium carbide (CaC₂) produces about 0.41 kg of acetylene gas on treatment with water. How many hours of service can be derived from 1 kg of calcium carbide in an acetylene lamp burning 35 litres of gas at NTP per hour? 5 15 10 20 5 15 10 20 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry In case of vapor-liquid equilibria, which of the following does not account for gas phase deviation from ideality? None of these Use of equation of state Activity co-efficient Fugacity co-efficient None of these Use of equation of state Activity co-efficient Fugacity co-efficient ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry What is the total pressure exerted by a mixture of 0.45 kg mole of benzene, 0.44 kg mole of toluene and 0.23 kg mole of o-xylene at 100°C, if their vapor pressures at 100°C are 1340, 560 and 210 mmHg respectively? 801.5 780.5 756.2 880.5 801.5 780.5 756.2 880.5 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A gas at 0°C is cooled at constant pressure until its volume becomes half the original volume. The temperature of the gas at this state will be - 136.5°K 0°K -136.5°C -273°C - 136.5°K 0°K -136.5°C -273°C ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry At a constant volume, for a fixed number of moles of a gas, the pressure of the gas increases with rise of temperature due to Increase in molecular attraction Increase in average molecular speed Decrease in mean free path Increased collision rate among molecules Increase in molecular attraction Increase in average molecular speed Decrease in mean free path Increased collision rate among molecules ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The number of H⁺ in 1 c.c solution of pH 13 is 10¹³ 6.023 x 10¹⁰ 6.023 xl0¹³ 6.023xl0⁷ 10¹³ 6.023 x 10¹⁰ 6.023 xl0¹³ 6.023xl0⁷ ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS