CBSE Class 11-science Answered
Find the gravitational energy per unit mass possessed by 1 kg of water if its total energy per unit mass is 200 J at a point where pressure is 1.96 x 104 Pa and velocity is 0.1 m/s.
Asked by Topperlearning User | 01 Aug, 2014, 10:31: AM
Expert Answer
Total energy per unit mass = P/ρ + gh + ½v² (as per Bernoulli's theorem)
200 = 1.96 x 104/103 + gh + ½ (0.1)²
200 = 19.6 + hg + 0.005 = hg + 19.605
Therefore, we have
hg = 200 - 19.605
hg = 180.395 J/Kg
Answered by | 01 Aug, 2014, 12:31: PM
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