Advertisements
Advertisements
Question
List the properties of ammonia that make it a good refrigerant.
Advertisements
Solution
Ammonia has a high latent heat of vaporisation and can be easily liquefied under pressure. As a result, it absorbs a large amount of heat during evaporation and provides cooling.
APPEARS IN
RELATED QUESTIONS
Is ammonia more dense or less dense than air?
State what you observe when a piece of moist red litmus paper is placed in a gas jar of ammonia.
When an ammonium salt is warmed with a sodium hydroxide solution, a gas is evolved. State three ways in which you can identify this gas.
The diagram shows a simple arrangement of the fountain experiment:
(i) Name the two gases you have studied which can be used in this experiment
(ii) What is the common properly demonstrated by this experiment
Name the gas evolved when the following mixtures are heated:
Sodium nitrate and ammonium chloride.
State one relevant observation of burning of ammonia in air.
Choose the correct answer from the options given below :
Ammonia is produced when ammonium chloride is heated with
- Of the two gases, ammonia and hydrogen chloride, which is more dense? Name the method of collection of this gas.
- Give one example of a reaction between the above two gases which produce a solid compound.
- Write the balanced equation for a reaction in which ammonia is oxidized by:
- a metal oxide,
- a gas which is not oxygen.
