Chemistry 3.3

0.45g of fuel A heated 150g of water in a calorimeter. The temp of the water changed from 19* to 45*. How much energy is released by 1.0g of fuel?

36400J or 36.4kJ

1 of 5

In a similar experiment to that in Q1, fuel B released 35.6kJ/g. The RFM of fuelA is 72 and fuel B is 144. Which fuel released more energy per mole?

Fuel B (A releases 2620.8kJ/mol and B releases 4058.4kJ/mol)

2 of 5

When 50cm3 of sulfuric acid was added to 100cm3 of sodium hydroxide, the temp increased by 12*. Calculate the engery change.

7560J or 7.56kJ

3 of 5

Draw an energy level diagram for an endothermic reaction.

142.8kJ/mol of iron

4 of 5

Why are cars fuelled with hydrogen being developed?

Fossil fuels are limited and produce green house gases, hydrogen releases water and a large amount of energy per gram. I

5 of 5

Other cards in this set

In a similar experiment to that in Q1, fuel B released 35.6kJ/g. The RFM of fuelA is 72 and fuel B is 144. Which fuel released more energy per mole?

Fuel B (A releases 2620.8kJ/mol and B releases 4058.4kJ/mol)

When 50cm3 of sulfuric acid was added to 100cm3 of sodium hydroxide, the temp increased by 12*. Calculate the engery change.

Draw an energy level diagram for an endothermic reaction.

Why are cars fuelled with hydrogen being developed?

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