For a tubular reactor with space time ‘τ’ and residence time ‘θ’, the following statement holds good.

Question: For a tubular reactor with space time ‘τ’ and residence time ‘θ’, the following statement holds good.
[A].

τ and θ are always equal.

[B].

τ = θ , when the fluid density changes in the reactor.

[C].

τ = θ , for an isothermic tubular reactor in which the density of the process fluid is constant.

[D].

τ = θ , for a non-isothermal reactor.

Answer: Option C

Explanation:

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