This is late but for anyone else who needs it...It's D. Far left
Answer:
The reaction must be spontaneous, the disorder of the system increases.
Explanation:
By the Second Law of Thermodynamics, a positive change in entropy is due to a net input heat, and entropy is a measure of the grade of disorder within the system. The net input heat means that resultant goes to the system from the surroundings.
By the First Law of Thermodynamics, a net input heat is due to a positive change in enthalpy.
The reaction is endothermic and spontaneous (since change in entropy is positive).
Answer:
C6H12O6
Explanation:
I attached the method for solving above.
Answer: Option (b) is the correct answer.
Explanation:
Vapor refers to the conversion of liquid state of a substance into gaseous state or conversion of a solid state into gaseous state.
Density of ice (solid state of water) is less than the density of liquid state of water. This is because there are spaces present in the crystal lattice of ice due to which it has less mass.
As a result, it has low density and hence, it floats on the surface of water.
Thus, we can conclude that the statement Solid water (ice), unlike most substances, is denser than its liquid form (water), is false.
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