Question

A first order reaction with a rate constant equals to 0.05 min?¹ is taking place in a constant volume batch reactor of 15 liters and operating isothermally at 300K; a desired conversion of 80% is achieved. The initial number of moles of the converted species is 7.5 moles. The reaction enthalpy $\Delta H_{rx}$ and the overall heat transfer coefficient times the heat transfer area (UxA) are -47,500 J mol?¹, and 25.0 W K?¹ respectively. a) Determine the amount of heat required and the temperature as function of time to maintain isothermal conditions, (8 Marks) b) Does the amount of heat found in part (a) represent a rate of heat removal or heat addition? (2 Marks)

          A first order reaction with a rate constant equals to 0.05 min?¹ is taking place in a
constant volume batch reactor of 15 liters and operating isothermally at 300K; a
desired conversion of 80% is achieved. The initial number of moles of the
converted species is 7.5 moles. The reaction enthalpy $\Delta H_{rx}$ and the overall heat
transfer coefficient times the heat transfer area (UxA) are -47,500 J mol?¹, and
25.0 W K?¹ respectively.
a) Determine the amount of heat required and the temperature as function of
time to maintain isothermal conditions,
(8 Marks)
b) Does the amount of heat found in part (a) represent a rate of heat removal
or heat addition?
(2 Marks)

A first order reaction with a rate constant equals to 0.05 min?¹ is taking place in a
constant volume batch reactor of 15 liters and operating isothermally at 300K; a
desired conversion of 80% is achieved. The initial number of moles of the
converted species is 7.5 moles. The reaction enthalpy Δ Hrx and the overall heat
transfer coefficient times the heat transfer area (UxA) are -47,500 J mol?¹, and
25.0 W K?¹ respectively.
a) Determine the amount of heat required and the temperature as function of
time to maintain isothermal conditions,
(8 Marks)
b) Does the amount of heat found in part (a) represent a rate of heat removal
or heat addition?
(2 Marks)

Added by Paul R.

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