For the reaction,
A(g) + B(g) $$ \to $$ C(g) + D(g), $$\Delta $$H^o and $$\Delta $$S^o are, respectively, − 29.8 kJ mol⁻¹ and −0.100 kJ K⁻¹ mol⁻¹ at 298 K. The equilibrium constant for the reaction at 298 K is :

A reaction at 1 bar is non-spontaneous at low temperature but becomes spontaneous at high temperature. Identify the correct statement about the reaction among the following :

What will occur if a block of copper metal is dropped into a beaker containing a solution of 1M ZnSO₄?

The total number of orbitals associated with the principal quantum number 5 is :