MULTI-STEP HEAT PROBLEMS The data below refers to an unknown substance. X. Boiling Heat of Point Fusion Melting point 14.0°C Heat of Vaporization 150 J/g 550 J/g 4.3 J/gºC 5.2 J/gºC 1.1 J/gºC 1. Draw a heating curve for substance X, going from 2°C to 120°C on the axis below. Write in all formulas used to calculate heat. qs=mXSH (vapor (T2-T.) 86.0°C (solid) melting (Fusim) qº heating SH Capacity SH (solid) T2=120°C Ti=86.0°( heating (liquid) vaporization 2¹ (liquid) 92: mxAH fus q1=myst (solid) (T₂-T₁) I2=14.0°C T₁-2°C heating q4=mx Alvap SH (vapor) 25 vapor (gas) 92= mxsHliqui djx (T₂-T₁).- Alvap->heat of Vaporization T2=86.0°C 7₁=14.0°C Atrus->heat of fusion M-mass of x 2°C Solid b. Determine the amount of heat necessary to change 30g of X from solid at 4°C to liquid at 14°C.
MULTI-STEP HEAT PROBLEMS The data below refers to an unknown substance. X. Boiling Heat of Point Fusion Melting point 14.0°C Heat of Vaporization 150 J/g 550 J/g 4.3 J/gºC 5.2 J/gºC 1.1 J/gºC 1. Draw a heating curve for substance X, going from 2°C to 120°C on the axis below. Write in all formulas used to calculate heat. qs=mXSH (vapor (T2-T.) 86.0°C (solid) melting (Fusim) qº heating SH Capacity SH (solid) T2=120°C Ti=86.0°( heating (liquid) vaporization 2¹ (liquid) 92: mxAH fus q1=myst (solid) (T₂-T₁) I2=14.0°C T₁-2°C heating q4=mx Alvap SH (vapor) 25 vapor (gas) 92= mxsHliqui djx (T₂-T₁).- Alvap->heat of Vaporization T2=86.0°C 7₁=14.0°C Atrus->heat of fusion M-mass of x 2°C Solid b. Determine the amount of heat necessary to change 30g of X from solid at 4°C to liquid at 14°C.
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Chapter1: Chemical Foundations
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Answer question “B”
Transcribed Image Text:MULTI-STEP HEAT PROBLEMS
The data below refers to an unknown substance, X.
Boiling
Heat of
Point
Fusion
Melting
point
14.0°C
86.0°C
Heat of
Vaporization
150 J/g
550 J/g
4.3 J/g °C
5.2 J/g °C
1.1 J/gºC
1. Draw a heating curve for substance X, going from 2°C to 120°C on the axis below. Write in all
formulas used to calculate heat.
(vapor)
(solid) melting (
q'
heating
ng (Fusim)
T2=120°C
Ti=86.0°C
(liquid)
heating
SH Capacity SH
(solid)
zb
having your taste buds rocked, here's $10 off your order of
92=mxAH fus
(liquid)
heating
25
q1=mxsh (solid) (T₂-T₁) T2=14.0°C
T₁ -2°C
Vaporization vapor (gas)
24-Μ. ΔΗναρ
2¹
92= mxsHliqui djx (T₂-T₁).
SH (vapor)
Alvap->heat of
c. How much heat will be released when 25g of X cools from 110°C to 50°C?
Vaporization
T2=86.0°C
T₁=14.0°C
Attrur->heat of fusion
M-mass of X
2°C
Solid
b. Determine the amount of heat necessary to change 30g of X from solid at 4°C to liquid at 14°C.
10
Enter
Shift
PgDn
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