If a system absorbs heat from its surrounding, the thermochemical process is described as being __.   A endothermic   B exothermic

Q: To raise the temperature of aluminum which has a mass of 200 grams from 298 K to 348 K, 8400 joules…

A: specific heat of aluminum, c= 840  J/kg.K

Q: When 151.0 mL of water at 26.0 C is mixed with 71.0 mL of water at 85.0 C, what is the final…

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Q: Specific Heats of Substances Substance Specific Heat (J/g°C) Substance Specific Heat (J/g*C) Ice…

A: Answer

Q: In the laboratory a student finds that it takes 65.3 Joules to increase the temperature of 11.7…

A: We can determine the specific heat of metal from the given formula : q = m × C × (Tfinal - Tinitial)…

Q: A beaker contained 62.09 g of water at 19.6°C. A 86.23-g sample of metal at 75°C was placed in it,…

A: Mass of water = 62.09 g Initial temperature of water = 19.60C Mass of metal = 86.23 g Initial…

Q: coffee-cup calorimeter contains 10.0 g of water at 59.00°C. If 3.00 g gold at 15.20°C is placed in…

A: The question is based on the concept of chemical thermodynamics. It involves calorimetry experiment.…

Q: Calculate the kJ of heat that must be removed from 0.553 grams of water to lower the temperature…

A:

Q: A sample of iron was heated to 112.0 °C, then placed into 260 g of water at 22.8 °C. The temperature…

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Q: An 87.0-g piece of iron whose temperature is 73.8 °C (347.0 K) is placed in a beaker containing 300…

A: Specific heat capacity is the amount of heat that is required to rise a temperature of 1 kg…

Q: A chemist heats the block of copper, then places the metal sample in a cup of oil at 25.00 C instead…

A: Since the final temperature of oil will be same as that of copper block as they reached equilibrium…

Q: The temperature of a sample of silver increased by 23.4 °C when 273 J of heat was applied. Substance…

A: Given: Increase in temperature, ∆T = 23.4°C Heat given, q = 273 J Specific heat for silver = 0.235…

Q: A 15.5g sample of titanium loses heat 32.9 calories of heat. If the initial temperature is 28.9°C.…

A: specific heat capacity - it is the heat capacity which is actually defined for given mass of a…

Q: In the laboratory a student finds that it takes 1Joules to increase the temperature of 13.3 grams of…

A:

Q: he specific heat of copper is 390 J/kg oC, the change in temperature is 40oC. If the copper absorbs…

A: From given data Specific heat c = 390 J/kg°C  Change in temperature ∆T = 40°C  Heat absorbs Q = 40 J…

Q: A 50.0 g sample of water at 70.0 °C is mixed with 60.0 g of water at 20.0 °C. Find the final…

A: Given: 50.0 g sample of water at 70.0 °C  60.0 g of water at 20.0 °C no heat is transferred to or…

Q: spesic nent iron 0.449 J.g".°C-! Spetic neat cOPper 0.385 J.9 A) s.o g cu b) l.0 g Fe S.O 9 c) 1.0g…

A: Recall the following relation from law of calorimetry       Q=m×C×∆tHere,amount of heat evolvedQ=9.5…

Q: A system absorbs 191 kJ of heat and the surroundings do 110 kJ of work on the system. What is the…

A: Given:Heat energy Q = 191 kJ.Work done on the system W = 110 kJ.

Q: A mug is said to hold 66.05 g of water at 14.59°C. A 103.86-g spoon at 61.96°C was placed in it,…

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Q: 5. If you hold snow, the snow begins to melt and your hand feel cold. This is because melting snow…

A:

Q: A. Specific Heat Metal Mass of metal: 58.9530 Original temperature of water: Original temperature of…

A: Q = mC ∆T ∆T = Tf -Ti Specific heat capacity of water = 4.184 J/g oC

Q: A metal radiator is made from 13.96 kg of iron. The specific heat of iron is 0.449 J/g °C. How much…

A: Given;

Q: A. Specific Heat Metal Mass of metal: 58.9530 Original temperature of water: Original temperature of…

A: Temperature loss of metal = [ 100-25] =75 0C Specific heat of metal = 0.285 J/g 0C

Q: Suppose you heat a metal object with a mass of 31.8 g to 96.8 °C and transfer it to a calorimeter…

A:

Q: In the laboratory a student uses a "coffee cup" calorimeter to determine the specific heat of a…

A: Calorimeter: A calorimeter is an instrument used for calorimetry, or the process of measuring the…

Q: The air in an inflated balloon (defined as the system) is warmed over a toaster and absorbs 130 J of…

A: The air in an inflated balloon (defined as the system) is warmed over a toaster and absorbs 130 J of…

Q: how many calories are required to heat 52.7g of aluminum from 100 celsius to 285 celcius ? specific…

A: The amount of heat required to raise the temperature of the substance by one-degree Celsius is known…

Q: When 126.0 mL of water at 26.0 ° C is mixed with 66.0 mL of water at 85.0 ° C, what is the final…

A: Given are two samples of water.  The mass of water in two samples can be calculated as

Q: 20 gr piece of metal at 100 °C is placed in a calorimeter containing 50.7 gr of water at 22 °C. The…

A: Here we are required to find the specific heat capacity of metal piece

Q: e Joule e Energy is absorbed e Energy can change forces from one type to another e freezing e…

A: Thermodynamics is a branch of science which deals with the concept of heat and temperature and also…

Q: How much heat is required to raise the temperature of 6.21g sample of iron from 25.0 Celsius to 79.8…

A: Temperature change (ΔT) taking place in 6.21g of iron is given.

Q: piece of metal was placed into a 75.00 grams of water. the temperature of the water increased from…

A:

Q: The temperature of a sample of silver increased by 22.9 °C when 255 J of heat was applied. Substance…

A:

Q: In the laboratory a student finds that it takes 28.7 Joules to increase the temperature of 13.1…

A: we have to calculate specific heat of mercury

Q: When 156.0 mL of water at 26.0°C is mixed with 86.0 mL of water at 85.0°C, what is the final…

A: Convert the given mL of water into mass.Given, density of water = 1.00 g/mL

Q: A 20.94 g sample of a metal is heated to 99.4°C in a hot water bath until thermal equilibrium is…

A: The heat lost by the metal is determined as follows,

Q: A 32 gram piece of metal is heated to a temeprature of 100 degrees celcius and placed into water.…

A: The relationship between heat ( q ) , specific heat ( s ) and change in temperature ( ∆T ) is q =…

Q: Initial Temperature of Metal 200.0 C Specific Heat of Metal Mass of Water 250.0 grams Initial…

A: The temperature of water increases from20oC to 24.08oC,  so the water absorbs heat. That heat comes…

Q: A student heats a 5.0 g sample of an unknown metal to a temperature of 207∘C, and then drops the…

A:

Q: An unknown solid metal at 150 degrees celsius was placed in 1.00 L of water at 25 degrees celsius.…

A: Heat absorbed or emitted by a substance = mass of the substance x specific heat of the substance x…

Q: calculate the specific heat (J/goC) of platinum

A:

Q: A 50.0 g piece of pure gold originally at 80.0°C is heated and in the process absorbs 100.0 J of…

A: Mass of gold=50.0g Energy absorbs= 100j C(gold)=0.129j/g°C T1= 80°C

Q: 105 mL of H2 O is initially at room temperature (22.0° C). A chilled steel rod at 2.0° C is placed…

A: The heat lost by water is given by  Q = mw Cw ΔTw  where mw = mass of water = density of water X…

Q: In the laboratory a student finds that it takes 62.2 joules to increase the temperature of 10.3…

A: Given data,Heat=62.2JMass of Fe=10.3gInitial temperature=23.7oCFinal temperature=38.4oC

Q: The specific heat of aluminum is 0.900 j/g*C, how many joules of energy are required to raise the…

A: Given, mass of Al (m) =20.0 gspecific heat of Al (c) =0.900 Jg.°Cinitial temperature T1 =10.0…

Q: A pile of wet mud and a pile of sandy clay are placed next to each other on a sunny day. If the…

A: The question is based on the concept of a specific heat capacity. amount of heat required to raise…

Q: The temperature of a sample of aluminum increased by 24.6 °C when 255 J of heat was applied.…

A: Given: Heat required = 255 J Change in temperature = 24.6oC Heat capacity of aluminum = 0.903 J/g oC

Q: A sample of lead pellets with a mass of 26.47 g that has an initial temperature of 89.98 degrees C…

A:

Q: You hold a cube of ice in your hand and it begins to melt. Identify all the energy transfers with…

A: If you hold a piece of ice on your hand , it start gaining energy from your hand and starts melting…

Q: the laboratory a student finds that it takes 35.9 Joules to increase the temperature of 11.7 grams…

A:

Q: TABLE 5.2 Specific Heat Values of Some Common Substances Substance Specific Heat (J/g °C) Substance…

A: