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If \Delta _{fus}H^{o} for H_{2}O is  6\; kJ\; mol^{-1} then heat required to melt 36 g of H_{2}O is

Option: 1

3\; kJ


Option: 2

6\; kJ


Option: 3

12\; kJ

 


Option: 4

24\; kJ


Answers (1)

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Answer (3)

1\; mol\; H_{2}O=18\; g\; H_{2}O : 6\; kJ\; heat

36 \; g\; H_{2}O:\frac{6kJ}{mol}\times \left ( \frac{36}{18} \right )mol=12\; kJ\; heat

 

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Divya Prakash Singh

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