Physics - Heat & Thermo Question with Solution | TestHub
PhysicsHeat & ThermoThermodynamics Laws & Specific Heats of GasesMedium2 minQB
PhysicsMediumstatement
Statement I: Mechanical work can be converted completely into heat.
Statement II: Heat cannot be converted completely into work in a cyclic process.
Options:
Answer:
A
Solution:
Friction (or stirring) converts all of the work done into heat, so Statement I is true. Statement II is the Kelvin-Planck limit for heat to work in a cycle, which is also true.
Subject:PhysicsTopic:Heat & ThermoSubtopic:Thermodynamics Laws & Specific Heats of Gases
⏱ 2mℹ️ Source: QB
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