V-I graph for a mettalic wire at two different temperatures `T_1` and `T_2` is as shown in figure. WHich of the temperatures `T_1` and `T_2` is higher and why.

The current I and voltage V curves for a given metallic wire at two different temperatures T_1 and T_2 are shown in the figure. Then ,

What is Kraft temperature (T_k) ?

Explain why Two bodies at different temperatures T_1 and T_2 if brought in thermal contact do not necessarily settle to the mean temperature (T_1+T_2)//2 .

For an ideal gas V - T curves at constant pressure P_(1) & P_(2) are shown in figure, from the figure

Consider a PV-diagram in which the path followed by one mole of perfect gas a cylindrical container is shown in (fig.). What is the ratio of temperature T_1 // T_2 ,if V_2 = 2V_1 ?

If k_1 and k_2 are rate constants at temperatures T_1 and T_2 respectively, then according to Arrhenius equation,

Two perfect gases at absolute temperatures T_1 and T_2 are mixed. There is no loss of energy. Find the temperature of the mixture if the masses of the molecules are m_1 and m_2 and the number of the molecules in the gases are n_1 and n_2 respectively.

Two rods X and Y are of equal lengths. Each rod has its ends at temperature T_1 and T_2 . What is the condition that will ensure equal rate of flow of heat through the rods X and Y?