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Question
Find the kinetic energy of 5000 cc of a gas at STP, given the standard pressure is 1.013 × 105 N/m2.
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Solution
Given: P = 1.013 × 105 N/m2
V = 5000 cc = 5 × 10-3 m3
E = `3/2 PV`
= `3/2(1.013xx10^5 N/m^2)(5xx10^-3 m^3)`
= 7.5 × 1.013 × 102 J
= 7.598 × 102 J
The required energy is 7.598 × 102 J.
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