06.09.2019 Purpose: To use the properties of thermodynamics to produce delicious vanilla ice cream.

Formula:

a couple of cups large cream

1 cup whole milk

2/3 cup sugars

1 teaspoon vanilla extract

1 vanilla bean, scraped

Data Table:

Time mixed: thirty minutes, 1800sMass of salt: 1 ) 77 kg

Mass of ice: 2 . 27 kg

Initial Temp. (ingredients): 12 Degrees Celsius Initial Temperature. (ice) -12 Degrees Grad Total mass: 0. 64 kgFinal temperature. (ice and ice cream): 4 Deg Celsius Mass of materials before: 1 . 13 kgVoltage: 120 Sixth is v

Current: 1 ) 2 A

Work done by ice cream manufacturer: P=VI P=(120 V)(1. two A) P= 144W P=W/t W=(P)(t) W= (144 W)(1740 s) W= 250560 T

Heat Gained by glaciers (as this cools and melts): q=mcΔt = (4. 082 kg)(4186 J/kg°C)(13°C) sama dengan 222, 134. 276 M

q=mL = (1. 25kg)(3. 34x105) = 417, 500 T

222, 134. 276 L + 417, 500 M = 639, 634. 276 J

Heat lost by simply metal bucket: q=mcΔt sama dengan (0. 196 kg)(897 J/kg°C)(23. 3°C-5°C) = 3217. thirty eight J Warmth lost simply by ice cream: QIce Cream= Q1+Q2 Q1=mcΔt Q2=mL QIce Cream = (0. 666kg)(3000J/kg°C)(13°C)+(0. 666kg)(2. 1014x105 J/kg) QIce Cream =165, 869. 938 J

Total inside energy alter for goodies: E= -QIce - QBucket – QIce Cream – W E= -250, 560 J – 639, 634. 276 T – 3217. 36 L – one hundred sixty five, 869. 938 J E= -1, 059, 281. 574

Work of Ice Cream Maker:

P=VI P=(120 V)(1. 2 A)

P=W/t W=(P)(t) W= (144 W)(1800 s) W= 259kJ

Heat obtained by ice cubes:

q=mcΔt sama dengan (4. 082 kg)(4186 J/kg°C)(13°C)

= 222, 134. 276 J

q=mL = (1. 25kg)(3. 34x105) = 417, 500 J

222, 134. 276 J & 417, 500 J sama dengan 639, 634. 276 T

Heat misplaced by material bucket:

q=mcΔt = (0. 196 kg)(897 J/kg°C)(23. 3°C-5°C) = 3217. thirty six J

Warmth lost simply by ice cream:

QIce Cream= Q1+Q2 Q1=mcΔt Q2=mL

QIce Cream = (0. 666kg)(3000J/kg°C)(13°C)+(0. 666kg)(2. 1014x105 J/kg) QIce Cream =165, 869. 938 T

Ice cream strength change:

E= -QIce - QBucket – QIce Cream – W

E= -250, 560 T – 639, 634. 276 J – 3217. 36 J – 165, 869. 938 J E= -1, 059, two-hundred eighty-one. 574