Transmission Of Heat Question 39
Question: In variable state, the rate of flow of heat is controlled by
Options:
A) Density of material
B) Specific heat
C) Thermal conductivity
D) All the above factors
Show Answer
Answer:
Correct Answer: D
Solution:
In variable state $ \frac{Q}{t}\propto K $ and $ \frac{Q}{t}\propto \frac{1}{\rho ,c} $
Therefore $ \frac{Q}{t}\propto \frac{K}{\rho ,c} $ (K = thermal conductivity, r = density, c = specific heat)
BETA
