Stoichiometry Which of the following is an exothermic reaction? Conversion of graphite to diamond None of these Decomposition of water Dehydrogenation of ethane to ethylene Conversion of graphite to diamond None of these Decomposition of water Dehydrogenation of ethane to ethylene ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The number of atoms of oxygen present in 11.2 litres of ozone (O₃) at N.T.P. are 6.02 x 10²³ 9.03 x 10²⁴ 1.20 x 10²⁴ 3.01 x 10²² 6.02 x 10²³ 9.03 x 10²⁴ 1.20 x 10²⁴ 3.01 x 10²² ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry One mole of methane undergoes complete combustion in a stoichiometric amount of air. The reaction proceeds as CH₄ + 2O₂ → CO₂ + 2H₂O. Both the reactants and products are in gas phase. ΔH°298 = - 730 kJ/mole of methane. Mole fraction of water vapour in the product gases is about 0.40 0.33 0.19 0.67 0.40 0.33 0.19 0.67 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry At higher temperatures, molal heat capacities for most of the gases (at constant pressure) __________ with increase in temperature. Does not vary Varies linearly Decreases Increases Does not vary Varies linearly Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The vapor pressure of liquids of similar chemical nature at any particular temperature __________ with increase in the molecular weight. Remains unchanged Decreases Either A or B; depends on the liquid Increases Remains unchanged Decreases Either A or B; depends on the liquid Increases ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry __________ kg of CaCO₃ on heating will give 56 kg of CaO. 100 1000 144 56 100 1000 144 56 ANSWER DOWNLOAD EXAMIANS APP
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