Chemical Engineering Thermodynamics
A large iceberg melts at the base, but not at the top, because of the reason that

All of these
Ice at the base contains impurities which lowers its melting point
The iceberg remains in a warmer condition at the base
Due to the high pressure at the base, its melting point reduces

ANSWER DOWNLOAD EXAMIANS APP

Chemical Engineering Thermodynamics
In a reversible chemical reaction (where, Δx = number of moles of products-number of moles of reactants )

Addition of inert gas has no effect on the equilibrium constant at constant volume for any value of Δx (+ ve, - ve) or zero)
Addition of inert gas favours the forward reaction, when Δx is positive
All of these
Pressure has no effect on equilibrium, when Δn = 0

ANSWER DOWNLOAD EXAMIANS APP