Stoichiometry
A car tyre of volume 0.057 m³ is inflated to 300 kPa at 300 K. After the car is driven for 10 hours, the pressure in the tyre increases to 330 kPa. Assume air is an ideal gas and Cv for air is 21 J/mole.K. The change in the internal energy of air in the tyre in J/mole is

880
380
630
760

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

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 kcal/m².hr.°K = 1.163 W/m².°C
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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Stoichiometry
Heat of reaction is not influenced by

The route/method through which final products are obtained
The physical state (e.g., solid, liquid or gaseous) of reactants and products
Whether the reaction is carried out at constant temperature or constant pressure
None of these

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