Which unit is NOT a unit of temperature?

Which unit is NOT a unit of temperature?

If object A is in thermal equilibrium with object B, and object B is in thermal equilibrium with object C, what can be said about the temperatures of objects A and C?

Two different metallic rods of the same length have their ends kept at the same temperatures $heta_1$ and $heta_2$ with $heta_2 > heta_1$. If $A_1$ and $A_2$ are their cross-sectional areas, $K_1$ and $K_2$ their thermal conductivities, the rate of heat flow is the same in both the rods. The condition for this is:

A metallic sphere with a radius of $r$ and emissivity $e$ is heated to a temperature $T$. If the absolute temperature of the surroundings is $T_0$, which of the following expressions correctly represents the net rate of heat loss by radiation from the sphere?

Heat always flows from:

An electric immersion heater of 1.08 kW is immersed in water. After the water has reached a temperature of ${100^0}C$, how much time will be required to produce 100 g of steam

A body cools from 50°C to 40°C in 5 minutes. The surrounding temperature is 20°C. In the next 5 minutes, it will cool approximately to:

A solid sphere and a hollow sphere of the same material and radius are heated to the same temperature and allowed to cool in the same environment. Which sphere will have a higher initial rate of cooling?

An electric immersion heater of 1.08 kW is immersed in water. After the water has reached a temperature of ${100^0}C$, how much time will be required to produce 100 g of steam

In a water-fall the water falls from a height of 100m. If the entire K.E. of water is converted into heat, the rise in temperature of water will be