In the following questions, Statement of assertion (A) is followed by a statement of reason (R). 1. If both assertion and reason are true and the reason is the correct explanation of the assertion, then mark. 2. If both assertion and reason are true but the reason is not the correct explanation of the assertion, then mark. 3. If assertion is true statement but reason is false, then mark. 4. If both assertion and reason are false statements then mark.
Assertion: When a bottle of cold carbonated drink is opened, a slight fog forms around t opening. Reason: Adiabatic expansion of the gas causes lowering of temperature a condensation of water vapors.A) 1
B) 2
C) 3
D) 4
Correct Answer: A
Solution :
Cold drinks are produced by injecting carbon dioxide into the drink at several atmospheres. Carbon dioxide dissolves readily even at normal atmospheric pressure. When the pressure is released (that is bottle is opened) carbon dioxide comes out of solution forming numerous bubbles and releasing the carbon dioxide back into the atmosphere. Also, in. "this process no heat is lost or gained, hence it is an adiabatic expansion.
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