Stoichiometry
Heat of neutralisation of a strong acid and strong base is always a constant value, i.e., 57 KJ/Kg mole. This is because

The strong base and strong acid reacts completely
The strong base and strong acid reacts in aqueous solution
Only OH⁻ and H⁺ ions react in every case
The salt formed does not hydrolyse

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Stoichiometry
A perfectly insulated container of volume V is divided into two equal halves by a partition. One side is under vacuum, while the other side has one mole of an ideal gas (with constant heat capacity) at 298 K. If the partition is broken, the final temperature of the gas in the container

Will be 298 K
Will be greater than 298 K
Will be less than 298 K
Can not be determined

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Stoichiometry
Pick out the wrong unit conversion of heat transfer co-efficient.

1 kcal/m².hr.°K = 1.163 W/m².°C
1 W/m² . °C = 0.1761 BTU/ft².hr.°F
1 kcal/m².hr.°C = 0.2048 BTU/ft².hr. °F. = 1.163 W/m².°K
1 BTU/ft².hr.°F = 4.88 kcal/m².hr.°C = 20.44 kJ/m².hr°C = 5.678 W/m².°C

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