Physics - Heat & Thermo Question with Solution | TestHub
PhysicsHeat & ThermoThermal ExpansionHard2 minQB
PhysicsHardnumerical
Passage / Comprehension
Steam at 150°C condenses at 100°C and exits at 80°C. It heats 12 kg water/h from 20°C to 70°C. cs = 2000, cw = 4000 J/(kg K), Lv = 2.2 × J/kg.
Find steam kg/h to three decimals.
Answer:
1.01
Solution:
Water needs 2400000 J/h. Steam supplies . Flow = , rounding to 1.008 .
Subject:PhysicsTopic:Heat & ThermoSubtopic:Thermal Expansion
⏱ 2mℹ️ Source: QB
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