Stoichiometry
With rise in temperature, the solubility of ammonia in water at a fixed pressure

Remains unchanged
Increases
Decreases
Increases exponentially

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Stoichiometry
At 100°C, water and methylcyclohexane both have vapour pressures of 1 atm. Also at 100°C, the latent heats of vaporisation of these compounds are 40.63 kJ/mole for water and 31.55 kJ/mole for methylcyclohexane. The vapour pressure of water at 150°C is 4.69 atm. At 150°C, the vapour pressure of methylcyclohexane would be expected to be

Indeterminate due to lack of data
Significantly more than 4.69 atm
Nearly equal to 4.69 atm
Significantly less than 4.69 atm

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Stoichiometry
The heat capacity of a substance is

Equal for solid and liquid states below melting point
Higher for solid state than for liquid state
Lower for liquid state than for gaseous state
Greater for liquid state than for solid state

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