Which gas leakage do you think poses a greater risk for fire? Explain

Q: Question 4 of 11 Air contained ina piston-cylinder assembly undergoes two processes in series, as…

A:

Q: What is different in bitween Ozone and Smog.

A: Smog:  The smog is the ground-level ozone. Smog is formed by the combination of smoke and fog.…

Q: When do stress concentrations occur?

A: Stress concentration, It is a location within an object where the magnitude of stress is high as…

Q: hat is the reaction force?

A: To define what is a reaction force.

Q: In GTAW the welding cable is connected to the tungsten electrode through a water-cooled copper…

A: Given data:- Gas Tungsten Arc Welding (GTAW):-GTAW, also known as TIG welding, is a welding process…

Q: Why trap is used after CFWH

A: Explanation  The trap are used after CFWH to allow to pass only liquid not vapour.It also reduce the…

Q: 4. Is a fire hydrant more likely to be cast or forged? Why?

A: Is a fire hydrant more likely to be casted or forged? The fire Hydrant are more likely to be Casted,…

Q: How to Laboratory Measure Energy Release rate J

A: The energy per unit of surface required to propagate a fracture over a certain distance is…

Q: Describe a 4-stroke compression ignition engine operation with neat sketches.

A:

Properties of Pure Substances

A substance with fixed chemical composition throughout is called a pure substance like water, air, and nitrogen. A pure substance does not have to be a single element or compound. A mixture of two or more phases of a pure substance is also a pure substance as long as the chemical composition is the same for all phases. These substances mainly have a constant/ uniform composition. The substances also have fixed boiling and melting points. A pure substance takes part in a chemical reaction to form predictable products.