Coefficient of thermal conductivity is the product of heat, distance and reciprocal of (area × difference in temperature × time). The new value of a unit of coefficient of thermal conductivity, if fundamental units are 21.6 kg , 1 decimetre

Question

Coefficient of thermal conductivity is the product of heat, distance and reciprocal of (area × difference in temperature × time). The new value of a unit of coefficient of thermal conductivity, if fundamental units are 21.6 kg , 1 decimetre , 4 K and 1 minute will be ______ × 10 - 6 new units.

Quantrex Academy · Accepted Answer

Correct answer: 02.50

Coefficient of thermal conductivity, k = Q × l A × Δθ × t ⇒ K = m l 2 t 2 × l l 2 × Δ θ × t ⇒ K = m × l Δ θ × t 3 = 21.6 × 0.1 4 × 60 3 = 2.5 × 10 - 6 new units

Coefficient of thermal conductivity is the product of heat, distance and reciprocal of (area × difference in temperature × time). The new value of a unit of coefficient of thermal conductivity, if fundamental units are 21.6 kg , 1 decimetre , 4 K and 1 minute will be ______ × 10 - 6 new units.

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