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  2. Chemistry
  3. Chemistry A Molecular Approach Study Set 2
  4. Quiz 6: Thermochemistry

Determine the Specific Heat Capacity of an Alloy That Requires

Question 89
Multiple Choice

Determine the specific heat capacity of an alloy that requires 69.3 kJ to raise the temperature of 150.0 g alloy from 450 K to 550 K. A) 3.20 J/g°C B) 2.00 J/g°C C) 4.62 J/g°C D) 1.79 J/g°C E) 7.20 J/g°C

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Q 90
A sample of copper absorbs 43.6 kJ of heat,resulting in a temperature rise of 90.0°C,determine the mass (in kg)of the copper sample if the specific heat capacity of copper is 0.385 J/g°C. A) 1.19 kg B) 6.02 kg C) 2.45 kg D) 3.30 kg E) 7.94 kg
Q 91
Calculate the change in internal energy (ΔE)for a system that is giving off 25.0 kJ of heat and is changing from 24.00 L to 21.00 L in volume at 1.50 atm pressure.(Remember that 101.3 J = 1 L∙atm) A) +25.5 kJ B) -16.0 kJ C) -25.5 kJ D) -24.5 kJ E) 456 kJ
Q 92
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