9 (a) Liquid octane is burnt in 30% excess air in a steady flow combustion chamber at a pressure of 1 atmosphere. Determine the heat given off per kilo mole of octane if the reactants and products are both maintained at 25°C and the water in the combustion products is in the (i) liquid form (ii) vapour form. (b) Liquid octane and theoretical air at 1 bar and 25°C react in a steady flow process under stoichiometric conditions. If the combustion is well insulated, determine the adiabatic temperature with water in the products in (i) liquid phase and (ii) vapour phase.

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9 (a) Liquid octane is burnt in 30% excess air in a steady flow combustion
chamber at a pressure of 1 atmosphere. Determine the heat given off per kilo
mole of octane if the reactants and products are both maintained at 25°C and
the water in the combustion products is in the (i) liquid form
(ii)
vapour form.
(b) Liquid octane and theoretical air at 1 bar and 25°C react in a steady flow
process under stoichiometric conditions. If the combustion is well insulated,
determine the adiabatic temperature with water in the products in (i) liquid
phase and (ii) vapour phase.
Transcribed Image Text:9 (a) Liquid octane is burnt in 30% excess air in a steady flow combustion chamber at a pressure of 1 atmosphere. Determine the heat given off per kilo mole of octane if the reactants and products are both maintained at 25°C and the water in the combustion products is in the (i) liquid form (ii) vapour form. (b) Liquid octane and theoretical air at 1 bar and 25°C react in a steady flow process under stoichiometric conditions. If the combustion is well insulated, determine the adiabatic temperature with water in the products in (i) liquid phase and (ii) vapour phase.
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