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At what temperatures is the decomposition of tungstic acid, H2WO4(s), to tungsten trioxide and waterThermodynamics Chemistry Question

Question

At what temperatures is the decomposition of tungstic acid, H2WO4(s), to tungsten trioxide and water vapor spontaneous under standard conditions?
H2WO4(s) ® WO3(s) + H2O(g)

A.

T > 385 K

✓ Correct
B.

T < 385 K

C.

The reaction is spontaneous at all temperatures.

D.

The reaction is not spontaneous at any temperature.

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