Measurement of specific heat of metals Aluminum Cupper Mass of inner cup of calorimeter mcal, g 50 50 Specific heat of calorimeter Ccal, cal/(g °C) Specific heat of water Cw, cal/(g °C) 0.217 0.217 1.00 1.00 Mass of metal Mm, g 80 140 Mass of inner cup + water Mcal + Mw, g 220 240 Mass of water Mw, g 170 190 Initial temperature of calorimeter and water to, °C Initial temperature of metal tm, °C 22 22 100 100 Final equilibrium temperature tr, °C 30 26 Thermal energy gain by calorimeter and water Qgain, cal Specific heat of metal Cm, cal/(g °C) Standard specific heat of metal Cst , cal/(g °C) 0.217 0.093 % error Thermal energy lost = Thermal energy gained Thermal energy Q = cmAt Specific heat c Thermal energy lost by metal = Thermal energy gained by (water + calorimeter) GmMm(tm-tf)= (ceatMeat+CwMw)(t,-to) | (Ccaimcal+ Cwmw)(tp- to) mm(tm-t;) Gm =

Measurement of specific heat of metals Aluminum Cupper Mass of inner cup of calorimeter mcal, g 50 50 Specific heat of calorimeter Ccal, cal/(g °C) Specific heat of water Cw, cal/(g °C) 0.217 0.217 1.00 1.00 Mass of metal Mm, g 80 140 Mass of inner cup + water Mcal + Mw, g 220 240 Mass of water Mw, g 170 190 Initial temperature of calorimeter and water to, °C Initial temperature of metal tm, °C 22 22 100 100 Final equilibrium temperature tr, °C 30 26 Thermal energy gain by calorimeter and water Qgain, cal Specific heat of metal Cm, cal/(g °C) Standard specific heat of metal Cst , cal/(g °C) 0.217 0.093 % error Thermal energy lost = Thermal energy gained Thermal energy Q = cmAt Specific heat c Thermal energy lost by metal = Thermal energy gained by (water + calorimeter) GmMm(tm-tf)= (ceatMeat+CwMw)(t,-to) | (Ccaimcal+ Cwmw)(tp- to) mm(tm-t;) Gm =

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

The temperature of a 5.00-kg lead brick is increased by 525 C°. If the specific heat capacity of lead is 128 J/(kg.C°), what is the increase in the mass of the lead brick when it has reached its final temperature? O 5.80 × 10- -11 kg O 9.12 × 10-11 kg O 1.60 × 10-12 kg O 3.73 × 10-12 kg O 2.80 × 10-12 kg
A student obtains the following data in a calorimetry experiment designed to measure the specific heat of aluminum. Initial temperature of water and calorimeter 70.3°C Mass of water 0.402 kg Mass of calorimeter 0.04 kg Specific heat of calorimeter 0.60 kJ/kg.°C Initial temperature of aluminum Mass of aluminum Final temperature of mixture (a) Use these data to determine the specific heat of aluminum. J/kg. °C (b) Is your result within 15% of 900 J/kg . °C? Yes No Need Help? 26.8°C 0.199 kg 66.4°C Read It
A machinist wishes to insert a copper rod with a diameter of 8 mm into a hole with a diameter of 7.996 mm. By how much would the machinist have to lower the temperature (in °C) of the rod to make it fit the hole? °C
We performed the experiment to measure the thermal conductivity of 2 materials (Brass & Steel) in the laboratory and measured the following tabulated values: Material 1- BRASS (Diameter = 25mm) %3D Power Temperature (°C) Q' 1 (W) 2 3 4 5 8 14.8 78.9 77.4 76 50 46.6 42.4 36 34.4 33.5 Material 2 - STEEL (Diameter = 25mm) Power Temperature (°C) Q' (W) 1 2 3 7 8 9 14.35 88.5 87.4 85 33.9 33.7 32.4
A 0.290 kg aluminum bowl holding 0.815 kg of soup at 25.0°C is placed in a freezer. What is the final temperature (in °C) if 391 kJ of energy is transferred from the bowl and soup, assuming the soup's thermal properties are the same as that of water? °C
26
A food product containing 80% moisture content is being frozen. Estimate the specific heat of the product at -6 ° C when 80% of the water is frozen. The specific heat of the dry product is 2 kJ / (kg ° C). it is assumed that the specific heat of water at -10 ° C is the same as the specific heat of water at 0 ° C, and the specific heat of ice follows the function Cp ice = 0.0062 Freezing point + 2.0649. Cp of frozen product = .... kJ / kg ° C.
a) A 500 joule of heat energy is transferred to 52 gram of mercury. By how much does the temperature increase in kelvin (Sp.Heat of mercury is 0.0334 cal/g°C) b) If 100 grams of water is raised to the same amount of temperature, then calculate the heat needed in joule
An aluminum pan whose thermal conductivity is 237 W/m-K hasa flat bottom with diameter 15 cm and thickness 0.4cm. Heat is transferred steadily to boiling water in the pan through its bottom at a rate of 1400 W. If the inner surface of the bottom of the pan is at 105°C, determine the temperature of the outer surface of the bottom of the pan
A container holds 820 kg of ice at a temperature of -24°C. It is heated at a rate of 16 kW for a period of 3,700 seconds. How much of the ice will have melted? specific sensible heat capacity (C₂) kJ/kgk latent heat (L) ki/kg melting point C boiling point C Your Answer: Answer ice liquid water steam ice/water water/steam 1 atmosphere 2.0 4.2 2.0 330 2260 0.0 100
Determine the rate of heat flow through a glass window 1.50 m high and 2.0 m wide. The thickness of the glass is 4.0 mm and the temperature at the inner and outer surface are 25 ⁰ C and 28 ⁰ C respectively. Thermal conductivity of glass is 0.84 W m⁻¹ K ⁻¹
How many kilograms of water must evaporate from a 63.2 kg woman to lower her body temperature by 0.668°C? The latent heat of vaporization for water at 37°C is 580 kcal/kg and the specific heat of the body at 37°C is 0.83 kcal/(kg · °C). kg