Chemistry

Chemistry, 21.06.2019 12:50, emma650

What is the specific heat of a substance that absorbs 2.5×10^3 joules of heat when a sample of 1.0 ×10^4g of the substance increases in temperature from 10°c to 70°c?

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Chemistry, 30.07.2019 13:50, 123niikee

What is the specific heat of a substance that absorbs 2500 joules of heat when a sample of 100 g of the substance increases in temperature from 10 °c to 70°c?

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Physics, 30.08.2019 07:50, leahstubbs

Ahot 0.25-kg piece of iron is placed in a calorimeter containing room temperature water. how much heat is lost by the iron as it cools from 125c to 75c? how much heat is gained by the water? 5. the temperature of 2.500 kg substance rises from 20 oc to 60 oc when it absorbs 23,500 joules of heat. calculate the specific heat capacity of the substance. what is the identity of the substance? 7. using the specific heat capacities of water and steam, explain which would be a better coolant for your car's engine if equal masses of each were used. 8. a cube of lead has a temperature of 18c. a second identical cube of lead is twice as hot. what is the temperature of the second lead cube? 2. for each pair of substances, identify the substance that will take more energy to heat from 20c to 100c and explain why. specific heat for water- 4180 j/kg°c. specific heat for silver- 235 j/kg°c. specific heat for iron- 450 j/kg°c. a. 30 g of water vs. 300 g of water b. 500 g of iron vs. 500 g of silver

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Chemistry, 30.08.2019 13:30, kkruvc

Given 28.2 grams of an unknown substance, if the substance absorbs 2165 joules of energy and the temperature increases by 35 kelvin, what is the specific heat of the substance? 2.14 x 106 j/g·k 2.19 x 100 j/g·k 5.73 x 10-4 j/g·k 2.69 x 103 j/g·k if someone could tell me how to do it as well, it would be greatly appreciated.

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Chemistry, 23.10.2019 08:50, tamya12234

What is the specific heat of a substance that absorbs 2500 joules of heat when a sample of 100 g of the substance increases in temperature from 20°c to 80°c.

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