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Stoichiometry

Stoichiometry
The unit of specific heat at constant pressure, Cp, in SI unit is

W/m²°C
J/kg°K
W/m°K
J/m³°K

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Stoichiometry
The increase in the temperature of the aqueous solution will result in decrease of its

Molarity
Mole fraction of the solute
Molality
Weight % of the solute

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Stoichiometry
At standard conditions, N₂ + 2O₂ ⇋ 2NO₂; ΔG° = 100 kJ/moleNO + ½O₂ ⇋ 2NO₂; ΔG° = -35 kJ/moleThe standard free energy of formation of NO in kJ/mole is

170
15
30
85

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Stoichiometry
The vapor pressures of benzene and toluene are 3 and 4/3 atmospheres respectively. A liquid feed of 0.4 moles of benzene and 0.6 moles of toluene is vapourised. Assuming that the products are in equilibrium, the vapor phase mole fraction of benzene is

0.2
0.4
0.6
0.8

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Stoichiometry
Pick out the wrong unit conversion of temperature.

Temperature difference of 1°K = 1°C = 9/5 °F
°F = (°C + 17.778) x 1.8
°R = 273 + °F
°C = (F- 32) x 0.555

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Stoichiometry
A sugar solution containing __________ percent sugar is equivalent to 1 Brix.

1
10
0.01
0.1

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