Question

When ammonium chloride is dissolved in water the solution becomes cold because

• A. Heat of solution of ammonium chloride is positive
• B. Heat of solution of ammonium chloride is negative
• C. Heat of dilution of ammonium chloride is positive
• D. Heat of formation of ammonium chloride is positive

Answer 1

The correct option is A Heat of solution of ammonium chloride is positive

Heat of solution of ammonium chloride is positive therefore it absorbs heat from the solution and the solution becomes cold