Which of the following energy is absorbed during the change of state of a substance?

The evaporation of water increases under the following conditions:

On converting 308K, 329K and 391K to Celsius scale, the correct sequence of temperatures will be:

Which of the following factors are responsible for the change in state of solid carbon dioxide when kept exposed to air?

(i) increase in pressure

(ii) increase in temperature

(iii) decrease in pressure

(iv) decrease in temperature

During respiration, glucose and oxygen enter our body cells and waste products carbon dioxide and water leave the body cells by the process of: