Question
Sensible heat is the heat needed to
The correct answer is
Change the temperature of a liquid or vapour
Sensible heat changes temperature without a phase change. For constant specific heat, \(Q=mc\Delta T\). Vaporisation and condensation involve latent heat instead.
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Important Questions from Phase Change of a Pure Substance
- Which of the following exists in a P-V diagram for water?
What the region (2) in the p-V diagram given below is called?
The saturation temperature of steam with increase in pressure increases _________.
A rigid tank contains 10 kg of water at 90°C. If 8 kg of water is in liquid form and the rest is in vapour form, what will be the volume of the tank?
[Given: At 90°C, saturation pressure is 70 kPa , specific volume at saturated liquid state = 0.001 m3/kg , specific volume at saturated vapour state = 2.36 m3/kg.]
- The triple point on a T-s diagram is _________.
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