Hot water in a thermos flask is an example for

Tea placed in thermos flask is an example of

A system containing some quantity of water in a thermos flask or in an insulated beaker. This would not allow exchange of heat between the system and surrouding through its boundary. This process is called as

A thermos flask is polished well

Which one of the following statements regarding a thermos flask is NOT correct?

The temperature does not decrease in a thermo flask because of the

Say true or false: Silvering in thermos flask is to reduce radiation.

Statement I : A thermos flask is made of double-walled glass bottles. Statement II: Metals are goog. conductors while gas and air are poor conductors of heat

An illusion of the appearance of water on a hot road or in a desert is an example of dispersion of light. True/false

100 cm^(3) of 0.05N 0.5 HCI solution at 299.95 K was mixed with 100 cm^(3) 0.5 N NaOH solution at 299.75 K in a thermos flask. The final temperature was found to be 302.65K . Calculate the enthalpy of neutralisation of HCI . Water equivalent of thermos flask is 44 g .