When 345 g of water at 35.0 °C and 295 g of water at 63.0 °C are added together in a calorimeter, the temperature of the mixture becomes 46.9 °C. If the specific heat capacity of water is 4.18 J/g °C, how many kilojoules of energy are absorbed by the calorimeter?

Q: If 134.3 kJ of heat are added to 2.10 × 102 g of water at 22.0°C, what is the final temperature of…

A: Let Q denotes the added heat, m denotes the water mass, S denotes the specific heat, Ti denotes the…

Q: A substance has a melting point of 20°C and a heat of fusion of 3.9 x 104 J/kg. The boiling point is…

A:

Q: How much heat is needed to raise the temperature of 2 kg of water 5K? a. 41800J b. 42800J c. 43800J…

A: The expression for the heat needed to raise the temperature is, Q=mc∆T                 (I)…

Q: How many degrees would the temperature of a 450 g piece of iron increase if 7600 J of energy are…

A: Given data: The mass of the iron piece is m=450 g The energy applied is Q=7600 J The specific heat…

Q: mass of cold water 50g temp of cold water 21 C mass of hot water 50g temp of hot water 56 C temp of…

A:

Q: A 600 cm X 1760 cm house is built on a 13.2 cm thick concrete slab of thermal conductivity 0.66…

A:

Q: If you add 700 kJ of heat to 600 g of water at 60.0°C, how much water will be left in the container?…

A: Given: Heat added to mass of water, m=600 g  at temperature, T=60.0°C  The latent heat of…

Q: The specific heat of ice is 2.10 kJ/kg °C, the heat of fusion for ice at 0°C is 333.7 kJ/kg, the…

A:

Q: at 1 atm pressure, the latent heat of fusion of water is 334 kj/kg and the latent heat of…

A: Given latent heat of fusion of water = 334 kj/kg latent heat of vaporization = 2257 kj/kg We have to…

Q: The area of the skin of an adult human being is about 2.10m^2. If the temperature of the skin of an…

A:

Q: 330 g of water at 55°C are poured into an 855 g aluminum container with an initial temperature of…

A: Given: The mass of the water is 330 g. The initial temperature of the water is 55oC. The mass of…

Q: If you add 700 kJ of heat to 600 g of water at 60.0°C, how much water will be left in the container?…

A:

Q: Following vigorous exercise, the body temperature of an77-kg person is 42 degrees celcius. At what…

A: The specific heat coefficient of the body is 3500 J/(kg.°C). The amount of heat released in the…

Q: How much energy is required to raise the temperature of 6.95 kg of water from 27.40oC to 54.69oC?…

A: Energy is the capacity to carry out work. The amount of work completed when the energy is released…

Q: A granite wall has a thickness of 69.8 cm, an area of 5.21 m by 2.82 Im and a thermal conductivity…

A: Rate of change of  heat across a conductor of thickness x area of cross section A and thermal…

Q: Some properties of a certain glass are listed here: Density 2300 kg/m3 Specific heat capacity 840…

A: K= 0.80 W/m ∙ C°  A= (2.7×2.4) = 6.48 m2  ∆T = 19-4 = 15 x= 0.009 m

Q: A student measures the following data in a calorimetry experiment designed to determine the specific…

A:

Q: 700 cm X 1360 cm house is built on a 13.2 cm thick

A:

Q: A carpenter builds a solid wood door with dimensions 2.00 m ×0.95 m × 5.0 cm. Its thermal…

A: The relation between temperature in kelvin and temperature in centigrade is:

Q: A ceramic mug is at a temperature of 343 K (about 160°F). The mug has a surface area of about 0.03…

A: Given data The temperature of the ceramic mug is Tc = 343 K. The surface area of the mug is A =…

Q: How much heat must be removed from 456 g of water at 25.0°C to change it into ice at -10.0°C? The…

A: Given data:  Initial temperature = 25°C Mass of water (m) = 456 g = 0.456 kg Specific heat of…

Q: 500 g of Ice at 0 °C is kept in an insulated cubic box. The length of the box is 30 cm and the…

A:

Q: The specific heat of ice is 2.10 kJ/kg.°C, the heat of fusion for ice at 0°C is 333.7 kJ/kg, the…

A:

Q: A mixture containing 21.4 g of ice (at exactly 0.00°C) and 75.3 g of water (at 55.3°C) is placed in…

A: Mass of ice = mice = 21.4 g Mass of water = mw = 75.3 g Final/equilibrium temperature of the mixture…

Q: A student measures the following data in a calorimetry experiment designed to determine the specific…

A:

Q: In a laboratory experiment, 16.0 J of heat raised the temperature of a 199-g object from 25.0° C to…

A:

Q: A 500 g copper cup has an initial temperature of 250 oK. If the specific heat of copper is 385 J…

A:

Q: A surveyor uses a steel measuring tape that is exactly 75000 m long at a temperature of 20 degrees…

A:

Q: A wood slab with a thickness of 0.05 m is subjected to a heat flux of 40 W/m2. The left and right…

A:

Q: а. 340 mL of 95 °C hot water is put into an insulated 140 g (25 °C) copper container. How many grams…

A:

Q: A window has dimensions of 1.75 m by 2.65 m and is made of glass 7 mm thick. On a winter day, the…

A: Given : Dimensions of window = 1.75 m x 2.65 m Thickness of glass = 7 mm = 0.007 m Outside…

Q: For number 40, compute for the latent heat of fusion of water Table 1. Mass of ice (g) 26.1 Mass of…

A: We need to find the latent heat of fusion of ice based on the given experimental observation.

Q: A calorimeter is made from 0.15 kg of aluminum and contains 0.2 kg of water. Initially, the…

A:

Q: The value of specific heat for copper is 390 J/kg⋅C∘J/kg⋅C∘, for aluminun is 900 J/kg⋅C∘J/kg⋅C∘, and…

A:

Q: A 50.0-g piece of brass (specific heat 380 J/kg K) is heated to 90.0° C and immersed in 100 g of…

A:

Q: What is the specific heat of an 800g unknown substance whose temperature changes by 78◦C after…

A: Given data: Mass of substance is, m=800 g. Change in temperature is, ∆T=78∘C. Amount of heat…

Q: 2.4 g of water was evaporated from the surface of skin. How much heat, in the unit of kJ, was…

A:

Q: At a foundry, 22 kg of molten aluminum with a temperature of 660.4◦C is poured into a mold. If this…

A:

Q: A pond with a flat bottom has a surface area of 946 m2 and a depth of 2.44 m. On a warm day, the…

A: The rate of heat energy due to conduction is

Q: A closed box is filled with dry ice at a temperature of -81.3 oC, while the outside temperature is…

A: we will use formula of heat energy. 81.3+273= 354.3 kelvin 21.5+273= 294.5 kelvin

Q: A 0.250-kg aluminum bowl holding 0.800 kg of soup at 25.0 C is placed in a freezer. What is the…

A: mbowl = 0.25 kgmsoup = 0.8 kgTi = 25°C = 298 KQrel = 377 × 103 JcAl = 900 J/kg °C =cbowl cwater =…

Q: The rate of heat transfer on a cold day in the Canada through a rectangular window is 2336 W. The…

A: The Law of heat conduction is given as: Q.=kAT2-T1d where, Q. is rate rate of heat transferT2-T1 is…

Q: A granite wall has a thickness of 76.3 cm, an area of 5.61 m by 2.95 m and a thermal conductivity of…

A: Given  thickness(d)=0.763 m area(A)=5.61 x 2.95 m2 conductivity (k)=2.1 W/(m 0 C) T2=28.2 oC…