Explanation

 In an isothermal process, the temperature remains constant, so the internal energy of an ideal gas also remains constant.

Explanation

Energy and work have the same dimensional formula, $$[ML2T−2][ML^2T^{-2}]

Both represent the ability to perform work or cause a change in energy.

Explanation

Ethics is a branch of philosophy that deals with questions of morality, considering what is considered right or wrong actions. 

Explanation

 "You must quit smoking or it will damage your lungs."

Must → Strong obligation or necessity. Best fit in this sentence for urgency.

Explanation

The figure of speech that involves the use of exaggeration for emphasis or effect is hyperbole. 

Explanation

A cell counter is a device specifically designed to count the number of cells in a suspension.

This is crucial in cell culture experiments, as researchers need to know the cell concentration before seeding or performing other procedures. 

Explanation

In a reversible reaction, a catalyst reduces the time to reach equilibrium by increasing the rate of both forward and reverse reactions. 

Explanation

 The precise definition of organic chemistry is the Study of carbon-containing compounds. 

Organic chemistry focuses on the study of compounds that contain carbon, regardless of whether they are hydrocarbons or their derivatives.

While hydrocarbons are a subset of organic compounds, the definition encompasses all carbon-based molecules

Explanation

Most catalytic elements or their compounds belong to the d-block. 

d-block elements (transition metals):

These elements are known for their ability to participate in a wide variety of chemical reactions due to the availability of their d-orbitals. This allows them to act as catalysts by facilitating the formation of intermediate compounds and lowering the activation energy of reactions. 

Explanation

Alkaline earth metals: These elements have two valence electrons in their outermost s orbital.

3rd period: In the third period, the outermost shell is the 3rd shell. 

Therefore, the electronic configuration of an alkaline earth metal in the 3rd period is [Ne] 3s².