Through the knowledge of heat, is the heat preservation effect of thermos bottle related to the amount of water in the bottle?

Yes, people who have studied physics should know that the temperature vertical speed of an object is related to its specific heat. Look at the related formula of specific heat.

When an object with mass m absorbs (or releases) heat Δ q in a certain process, the temperature increases (or decreases) Δ t, then Δ q/Δ t is called the heat capacity of the object in this process, which is expressed by c, that is, c = Δ q/Δ t. The heat capacity is divided by the mass to obtain the specific heat capacity c = c/m = Δ q/m Δ t. For the heat capacity and specific heat capacity of micro-process, the specific heat capacity In the finite process when the temperature of an object changes from T 1 to T2, the heat absorbed (or released) is Q = ∫ (T2, T 1) CDT = M ∫ (T2, T 1) CDT.

According to the formula, the mass is directly proportional to the change time of temperature. The more water there is in a water bottle, the greater the mass, and the greater the mass, the longer it takes for the temperature to change.