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25 votes
25 votes
10. A solution contains 130 grams of KNO3 dissolved in 100 grams of water When 3 more grams of KNO3 is added, none of it dissolves, nor do any additional crystals appear. The temperature of the solution is closest to

A.65 Celsius

B. 68 Celsius

C. 70 Celsius

D. 72 Celsius

User Jay Kumar
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2 Answers

14 votes
14 votes

Answer:

B. 68 Celsius

Step-by-step explanation:

User Muichkine
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3.1k points
26 votes
26 votes

Answer:

Option B

Step-by-step explanation:

We will check the solubility graph for potassium nitrate, KNO 3. Based on the graph it can be said that the temperature of solution when 130 grams of KNO3 dissolves in 100 grams of water is near to 65 degree Celsius. Now if three grams of solute is increased then the temperature of the solution will increase by a degree or so and hence the most probable temperature would be 68 degree Celsius.

Hence, option B is correct

User Gyum Fox
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2.8k points