Which of the following has a fxed volume and shape? Milk
Feather
Carbon dioxide
Oxygen

Feather

Explanation:

A feather is a solid which doesn't change its shape or size.

Carbon Dioxide and Oxygen are both gases that don't have a fixed size or shape.

Milk is a liquid which can change its shape but not size.

the answer is 303.15 or 303

definition

                    entropy is a measure of the randomness or the extent of disorder of a chemical process.

                      enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.

measurement units:

                        entropy is measured in joule per kelvin (jk⁻¹)   whereas enthalpy is measured in joule per mole (jmol⁻¹)

requirements:

                            entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.

                              in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.