Related Questions

A solid-oxide fuel cell is fed with carbon monoxide and reacts with air to produce CO2. This reaction will produce 2 electrons which are used to power an electric circuit external to the fuel cell. The reaction equation is shown below: 2CO(g) + O2(g) -> 2CO2(g) ΔHr° = -565.96 kJ/mol This reaction does not occur for other types of fuel cells which use a catalyst, such as polymerelectrolyte membrane or phosphoric-acid fuel cells. The presence of carbon monoxide on the anode side of these types of fuel cells will cause catalyst poisoning, reducing the efficiency and voltage of the fuel cell. Determine the rate of enthalpy change for a carbon dioxide production rate of 208 mol/hr. The extent of the reaction occurring in the fuel cell can be obtained by the following equation: where:
With reference to 'fuel cells' in which hydrogen rich fuel and oxygen are used to generate electricity. Consider the following statements.
1. If pure hydrogen is used as a fuel, the fuel cell emits heat and water as by products.
2. Fuel cells can be used for powering buildings and not for small devices like laptop, computers.
3. Fuel cells produce electricity in the form of Alternating Current (AC).
Which of the statements given above is/are correct?
Determine the corrections or otherwise of the following Assertion and reason : Assertion : Total fuel volume of aircraft is divided into mission or used fuel, reserve fuel and trapped fuel. Reason: Depending on type of aircraft, fuel fraction for each category will be different. and are true and is the correct reason for b) Both and are true but is not the correct reason for c) is true but is false d) is false but is true
What is minimum amount of air required per m3 of gaseous fuel for complete combustion? m3/m3 of fuel b) 1/100 m3/m3 of fuel c) 1/21 m3/m3 of fuel d) 1/100 m3/m3 of fuel
While calculating HCV, if we need to apply the fuse wire, acid and cooling corrections then what is the formula for HCV? /weight of fuel b) HCV = /weight of fuel c) HCV = /weight of fuel d) HCV = /weight of fuel
In a diesel engine
1. Fuel injection pump is used
2. Fuel injection pump and carburettor is used
3. Fuel injector is used
4. Neither fuel injection pump nor injector is used
Fe(s) |Fe2+ (aq) || Br2 (l) ; Br- (aq)| Pt(s) তড়িৎ রাসায়নিক কোষের সঠিক কোষ-বিক্রিয়া কোনটি? (Which one is the correct cell reaction of the given electrochemical cell?)
Fes|Fe2+aq∥Br2I; Br-aq| pts তড়িৎ রাসায়নিক কোষের সঠিক কোষ-বিক্রিয়া কোনটি? (Which one is the correct cell reaction of the given electrochemical cell?)
When no current is drawn through an electrochemical cell, the difference of the electrode potentials of the two electrodes is called cell emf. True or False?
What is the observation when the opposing external applied potential to an electrochemical cell is greater than the cell’s potential?