Are these statements about the natural refrigerants true?
Statement 1: Propane and isobutene are natural refrigerants.
Statement 2: These are produced from nature’s bio-chemical processes.
a) True, False
b) True, True
c) False, True
d) False, False
Answer: b
Explanation: Some of the natural refrigerants are water, air, CO2, ammonia and hydrocarbons like propane, isobutene and propene. Natural refrigerants are the chemicals which are obtained from nature’s bio-chemical processes. They do not deplete the ozone layer and make a negligible contribution to global warming.
Related Posts
__________ uses reflectance & absorbance principles for calculating the moisture content.
_________ method id based on dielectric principle.
______________ of moisture measurement is based on chemical reactions.
The oven drying methodology consists of heating by ________
Halogen and infrared drying are the examples of _________________
_____________ is the amount of moisture a material will absorb relative to ambient temperature and humidity conditions.
What is the critical point of water?
Join The Discussion