A cars fuel tank holds 40 kg of petrol. 1 kg of petrol releases 5
Question:
A car’s fuel tank holds 40 kg of petrol.
■ 1 kg of petrol releases 5 × 107 J of energy when it burns.
■ Only 40% of the energy released when the petrol burns is converted into useful work.
■ 1 × 106 J of work is needed to drive the car 1 km.
a. How many joules of energy are released when 40 kg of petrol burns?
b. How many of these joules of energy are available to move the car forward?
c. How far can the car travel on 40 kg of petrol?
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a 40 kg of petrol will release 40 5 107 2 109 ...View the full answer
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Related Book For 
Cambridge International AS And A Level Chemistry Coursebook
ISBN: 9781316637739
2nd Edition
Authors: Lawrie Ryan, Roger Norris
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