Compared to the quantity of heat needed to raise 10. grams of liquid water 5°C, the heat needed to raise the t?

1.Compared to the quantity of heat needed to raise 10. grams of liquid water 5°C, the heat needed to raise the temperature of 10. grams of ice 5°C is

less

greater

the same

2. How much heat is required to change 3.0 kilograms of ice at 0.0°C to water at 0.0°C?

1.0 × 103 kJ

3.3 × 102 kJ

2.3 × 103 kJ

6.8 × 103 kJ

3, Which sample of metal will gain net internal energy when placed in contact with a block of lead at 100°C?

platinum at 60°C

iron at 100°C

lead at 125°C

silver at 200°C

4.When a student drops a beaker, it shatters, spreading randomly shaped pieces of glass over a large area of the floor. According to the second law of thermodynamics, the measure of the disorder of this system is known as

vaporization

absolute order

molecular collision

entropy

1 Answer

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  • 9 years ago
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    Compared to the quantity of heat needed to raise 10. grams of liquid water 5°C, the heat needed to raise the temperature of 10. grams of ice 5°C is

    specific heat of water is 4.186 kJ/kgC

    specific heat of ice is 2.06 kJ/kgC

    specific heat of steam is 2.1 kJ/kgK

    heat of fusion of ice is 334 kJ/kg

    First part: assuming the water is NOT close to boiling point is

    4.186 kJ/kgC x 0.01 kg x 5C = 209 joules

    Second part: assuming the ice is NOT close to melting point

    2.06 kJ/kgC x 0.01 kg x 5C = 104 joules

    LESS

    .

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