Homework Answers
1)
Given:
Q = 3701 J
ΔT = 48.3 oC
use:
Q = C*ΔT
3701 = C*48.3
C = 76.6 J/oC
Answer: 76.6 J/oC
2)
Specific heat capacity,
Cs = C/mass
= 76.6 J/oC / 319 g
= 0.240 J/g.oC
This is silver
Answer: silver
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The temperature of an object increases by 48.3 °C when it absorbs 3701 J of heat. Calculate the heat capacity of the ob...
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The object is composed of _________? The temperature of an object increases by 60.1 °C when it absorbs 3657 J of hea...
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The temperature of an object increases by 29.0 °C when it absorbs 3693 J of heat. Calculate the heat capacity of the object. What is the formula for heat (q) that does not contain a variable for mass?___________________ Calculate the specific heat capacity of the object if the object weighs 331 grams. What is the formula for heat (q) that contains a specific heat capacity term?___________________
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The object is composed of _________?
The temperature of an object increases by 60.1 °C when it absorbs 3657 J of heat. Calculate the heat capacity of the object. C= J/°C The mass of the object is 385 g. Use the table of specific heat values to identify the composition of the object. Substance Specific heat (J/(g. °C)) 0.129 gold lead 0.158 iron 0.444 0.900 aluminum
Heat Capacity The temperature of an object increases by 29.0 °C when it absorbs 3693 J of heat. Calculate the heat capacity of the object. What is the formula for heat (9) that does not contain a variable for mass? Solve: Calculate the specific heat capacity of the object if the object weighs 331 grams. What is the formula for heat (g) that contains a specific heat capacity term? Solve: Calorimetry A researcher studying the nutritional value of a new...
The table lists the specific heat capacities of select substances. Substance Specific heat capacity (J/g °C) lead 0.128 silver 0.235 copper 0.385 iron 0.449 aluminum 0.903 water 4.184 An unknown substance has a mass of 13.3 g. The temperature of the substance increases by 16.7 °C when 52.2 J of heat is added to the substance. What is the most likely identity of the substance? O lead O aluminum iron O copper water O silver
Question 4 of 8 > Substance lead Specific heat capacity (J/g °C) 0.128 0.235 0.385 silver copper iron 0.449 aluminum 0.903 4.184 water An unknown substance has a mass of 18.9 g. The temperature of the substance increases by 18.3 °C when 81.3 J of heat is added to the substance. What is the most likely identity of the substance? O aluminum silver O water O copper
The temperature of a sample of silver increased by 22.5 °C when 263 J of heat was applied. What is the mass of the sample? Substance lead silver copper iron aluminum Specific heat J/g °C) 0.128 0.235 0.385 0.449 0.903 m 8
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