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. -1632.3 +1632.3 +816.15 -2448.45 -1632.3 +1632.3 +816.15 -2448.45 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry One micron is equal to __________ cm. 44112 44108 44110 44106 44112 44108 44110 44106 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry If the pH value of a solution changes by one unit, it implies that hydrogen ion concentration in the solution will change __________ times. 20 10 70 100 20 10 70 100 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry At 100°C, water and methylcyclohexane both have vapour pressures of 1 atm. Also at 100°C, the latent heats of vaporisation of these compounds are 40.63 kJ/mole for water and 31.55 kJ/mole for methylcyclohexane. The vapour pressure of water at 150°C is 4.69 atm. At 150°C, the vapour pressure of methylcyclohexane would be expected to be Significantly less than 4.69 atm Significantly more than 4.69 atm Nearly equal to 4.69 atm Indeterminate due to lack of data Significantly less than 4.69 atm Significantly more than 4.69 atm Nearly equal to 4.69 atm Indeterminate due to lack of data ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry What is the simplest formula of a compound containing 50% of element A (atomic weight = 10) and 50% of element B (atomic weight = 20)? AB₂ AB₃ A₂B A₂B₃ AB₂ AB₃ A₂B A₂B₃ ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry 1 Pascal (unit of pressure) is equal to __________ N/m². 0.1 1000 1 10 0.1 1000 1 10 ANSWER DOWNLOAD EXAMIANS APP
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