Question

Choose the correct statement(s) among the following:
(A) Internal energy of H2O remains constant during conversion of liquid into its vapour at constant
temperature.
(B) During fusion of ice into water enthalpy change and internal energy change are almost same at
constant temperature.
(C) During adiabatic compression of an ideal gas, the temperature of gas increases.
(D) During compression of an ideal gas at constant pressure, the temperature of gas decreases.​

Answer 1

Answer:

I think ( b)is the correct option

Answer 2

The correct answer is:

(b) During fusion of ice into water enthalpy change and internal energy change are almost same at  constant temperature.

(c) During adiabatic compression of an ideal gas, the temperature of gas increases.

(d) During compression of an ideal gas at constant pressure, the temperature of gas decreases.​

• Fusion or melting: The process by which a solid changes into a liquid state at a consistent temperature by retention of hotness is called fusion or melting. Model: Ice (solid) melts into water (liquid) at a temperature of 0°C and wax melts at 63°C
• In thermodynamics, an adiabatic process is a sort of thermodynamic process that happens without moving hotness or mass between the thermodynamic framework and its current circumstance. Not at all like an isothermal process, an adiabatic process moves energy to the environmental elements just as work.
• At the point when an ideal gas is compressed adiabatically (Q=0), work is done on it and its temperature increments; in an adiabatic development, the gas takes care of business, and its temperature drops. By and by, because work is done on the combination during the compression, its temperature rises fundamentally.