Question

what new hydrocarbon is formed when propene is made to react with plenty of hydrogen?​

Answer 1

Answer:

The Old Thermodynamist says:

In the presence of a catalyst and T ≤ 650C,

Propene + hydrogen can be converted to propane:

C3H6(g) + H2(g) = C3H8(g) T ≤ 650C

Change in Free Energy: ΔG(300C) = -49.7kJ (negative, so the reaction runs)

Change in Enthalpy: ΔH(300C) = -128.0kJ (negative, so the reaction is exothermic)

Explanation:

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Answer 2

Answer:

Alkenes contain at least one carbon-carbon double bond. It is the presence of this double bond that makes alkenes more reactive than alkanes. As was demonstrated by the test for alkenes using bromine water, all alkenes can be characterised by their addition reactions. Addition reactions involving alkenes are reactions in which the carbon–carbon double bond is converted to a single bond and atoms or groups are added to each

Explanation:

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