Project ForgeChemical Technology
Inorganic Chemical Industries
GATE 2011
Easy
Which ONE of the following sequences is arranged according to INCREASING calorific value?
- AProducer gas, Natural gas, Water gas
- BNatural gas, Producer gas, Water gas
- Producer gas, Water gas, Natural gas
- DWater gas, Natural gas, Producer gas
Explanation
Producer gas has the lowest calorific value (diluted heavily with N2), water gas is intermediate (mainly CO+H2), and natural gas (mostly methane) has by far the highest calorific value. Increasing order: Producer gas < Water gas < Natural gas.
Source: GATE CH 2011 (2011)
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