Chemistry

For a reaction at constant temperature, as Q increases

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Which equation can be used to determine Gform for C2H5OH from its elemental parts. Be sure that the ...

Started by cnetterville

Which of the following are unstable with respect to their constituent elements at 25C?

Started by joesmith1212

A positive value of Gf for a solid compound at 25C means the

Started by xclash

Calculate the standard free energy for the reaction given. 2 CH3OH(l) + 3 O2(g) 2 CO2(g) + 4 H2O(l)

Started by Chloeellawright

Calculate the standard free energy change at 25C for the reaction 2 NO(g) + O2(g) 2 NO2(g).

Started by ssal

A reaction has H = 61.9 kJ/mol and S = 405.4 J/K. Is this reaction spontaneous or nonspontaneous? At ...

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For the evaporation of water during perspiration on a hot, dry day,

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Which statement is true about the formation of CaCO3(s) from CaO(s) and CO2(g) at 1.00 atm?CaO(s) + ...

Started by nautica902

For bromine, Hvap = 30.91 kJ/mol and Svap = 93.23 JK-1mol-1 at 25C. What is the normal boiling point ...

Started by maegan_martin

The solubility of manganese(II) fluoride in water is 6.6 g/mL at 40C and 4.8 g/L at 100C. Based on ...

Started by viki

Why is the sign of G rather than the sign of Stotal generally used to determine the spontaneity of a ...

Started by ishan

A hot penny is dropped into cold water inside a polystyrene foam cup. Assuming negligible heat loss ...

Started by EY67

For the processCaCO3(calcite) CaCO3(aragonite) H = -0.21 kJ, S = -4.2 J/KAssuming that the ...

Started by jrubin

For a process to be at equilibrium, it is necessary that

Started by jc611

Calculate S for the formation of three moles of solid sodium bromide from the elements at 25C.

Started by DelorasTo

Calculate S for the following reaction. N2(g) + 2 O2(g) 2 NO2(g)

Started by ss2343

According to the third law of thermodynamics,

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The Boltzmann formula is S = k ln W. A perfect crystal has a molar entropy of 0 at absolute zero because

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Predict the sign of S for each of the following processes, which occur at constant temperature.I.The ...

Started by WWatsford

The entropy change associated with the expansion of one mole of an ideal gas from an initial volume ...

Started by cabate

What is k in Boltzmann's formula, S = k ln W?

Started by sheilaspns

The brown color associated with photochemical smog is due to NO2(g), which is involved in an ...

Started by daltonest1984

Sodium reacts violently with water according to the equation:2 Na(s) + 2 H2O(l) 2 NaOH(aq) + ...

Started by xclash

Without doing any calculations, determine whether the standard entropy change, S is positive or ...

Started by maychende