Its best to use the formula that takes in consideration your resting heart rate as well as age vs the standard 220 - Age formula but I'd say what you are doing is pretty good for a workout.
Colloid is a heterogeneous mixture in which particle size is intermediate of true solution and suspension.Smoke from a fire is example of colloidal system in which tiny particles of solid float in air.olloid is a heterogeneous mixture in which particle size is intermediate of true solution and suspension.
A colloid may be a mixture of one substance that may spread out evenly inside another substance. They may be in two different phases or states of matter. One substance can be the dispersion medium, such as water or gas. The other is kind of dispersed medium, sometimes called the 'internal phase'.