Question

The SI unit of the coefficient of thermal conductivity k is often written as J/(smK). Which equivalent unit expression is also correct for k?

विकल्प

• J/(m²s)

• JK/s

• WmK

• W/(mK)

Answer 1

W/(mK)

Explanation:

Since W=J/s, the unit J/(s·m·K) is equivalent to W/(m·K).