Explanation

Explanation

Explanation

Explanation

Explanation

Thermal cracking is a process in which high temperatures are used to break down large hydrocarbon molecules into smaller, more useful molecules.

Such as gasoline and diesel.

This process is widely used in the petroleum industry.

Explanation

A moving charged particle is surrounded by both an electric field and a magnetic field.

The electric field is due to the charge itself, and the magnetic field is generated due to the particle's motion.

Explanation

Melting ice below 0°C by applying pressure is a spontaneous physical change. 

Physical change:

This is correct because the process only changes the state of water from solid to liquid, without altering its chemical composition. 

Spontaneous:

• Under the applied pressure, the ice will naturally melt even below 0°C.
• A spontaneous process occurs without any external energy input. 

Explanation

 A buffer is a solution that resists change in its pH. 

A buffer solution is composed of a weak acid and its conjugate base (or a weak base and its conjugate acid).

When a small amount of a strong acid or base is added to a buffer,

The added ions react with the components of the buffer to maintain a relatively constant pH. 

Explanation

Explanation