What is the value of entropy at 273°K?

The speed of a sound wave in a gas is analogous to the speed of ________?

Latent heat of dry steam at atmospheric pressure is 539 Kcal/kg; which ________ with increase in the pressure of steam?

Nylon-66 is a polyamide of ________?

Which of the following gives the work required for size reduction of coal to -200 mesh in a ball mill most accurately?

Sulphuric acid is mainly used in the ________ industry?