Matching Pairs ThermochemistryOnline version Solve the q=mcT equation to find the matching answers. by Devon Heath 1 If a water sample absorbs 22,000 J and changes in temperature from 25°C to 42°C, what was its mass? 2 A sample of iron lost 2300 J when it cooled from 80°C to 30°C? The specific heat of iron is 0.449 J/g°C. What was the mass of the sample? 3 If 300 J of heat are absorbed as 60 g of lead and the temperature increases from 12°C to 42°C, what is the specific heat of lead? 4 If 135g of copper at 32°C is raised to 45°C, and the specific heat of copper is 0.385 J/g °C, how much energy was absorbed? 5 If 400 grams of water increased in temperature from 10°C to 20°C, how much heat was absorbed? 6 A sample of metal with a mass of 140 g is cooled from 98°C to 61°C with a release of 1140 J. What is the sample's specific heat? 102 Grams 676 J 309.6 Grams 16,720 J 0.167 J/g°C 0.22 J/g°C
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