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Alla [95]
3 years ago
9

The above shows a balloon full of gas which has a volume of 120.0 mL

Chemistry
1 answer:
bazaltina [42]3 years ago
7 0

Answer: 128 mL

Explanation: 120mL/300k=v2/320k

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How much heat is required to melt 26.0 g of ice at its melting point?
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Answer:

Heat required to melt 26.0 g of ice at its melting point is 8.66 kJ.

Explanation:

Number of moles of water in 26 g of water: 26× \frac{1}{18.02} moles

                                                                      =1.44 moles

The enthalpy change for melting ice is called the entlaphy of fusion. Its value is 6.02 kj/mol.

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                                           q = n × ΔH

where:

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n  = moles

Δ H  = enthalpy

So calculating we get,

                                        q= 1.44*6.02 kJ

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We require 8.66 kJ of energy to melt 26g of ice.

                       

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