A glass containing 200. g of H2O at 20C was placed in a refrigerator. The water loses 11.7 kJ as it cools to a constant temperature. What is its new temperature? The specific heat of water is 4.184 J/g·C.

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A: Recall the given reaction CH4g + 2 O2g → CO2g + 2 H2Ol     ,  ∆H°=-890.3 kJ We have to find the mass…

Q: When 18.0 mL of water at 11.0 C is combined with 20.0 mL of water at 55.0 C, what is the final…

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Q: How much heat must be added to a 8.21 g sample of gold to increase its temperature from 25 oC to…

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Q: Based on the data given below calculate the energy released or absorbed by the water. The specific…

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Q: How much heat in kJ is needed to raise the temperature of 130.0 g of water from 15 °C to boiling…

A: Given, amount of water =130.0 ginitial temperature =15 °Cfinal temperature(boiling point of water)…

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A: Given  Mass of water = 325 g = m  Specific Heat of water = 4.184 J/g°C ∆T = 10 °C

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Q: What amount of heat is released when the temperature of 450.0 g of a substance drops by 7.1 °C?…

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Q: 79.8 grams of a metal that is at temperature 92.39 oC is placed in 186.3 mL of water at 19.79 oC.…

A: Here use thermal equilibrium concept. Here final temperature is 24.68 degree celcius, So metal…

Q: Thirty grams of silicon at 80.0°C is added to 70.0mL of water at 20.0°C. Calculate the final…

A: Given: The mass of silicon = 30 g The initial temperature of silicon = 80.0 °C The volume of water =…

Q: How much heat is required to warm 100.0 g water from 31.8 degrees Celcius to 67.5 degrees Celcius?…

A: The heat required is calculated as,

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Q: Define specific heat capacity. the quantity of heat required to raise the temperature of 1 mole of a…

A: specific heat is the property of the substance and is different for different substances

Q: How much energy is removed from 500.0 g of liquid water when the temperature is lowered by 1.10 deg…

A: We know that : Q = mC∆T ...(1)  Here, Q = kJ, m = mass of water = 500 gm, C = heat capacity of water…

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Q: If 50.0 g of water change in temperature from 22.5 to 25.4 deg C and the specific heat capacity of…

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Q: An exothermic reaction liberates 7.58 kJ of heat in a coffee cup calorimeter containing 157 grams of…

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Q: How much heat must be absorbed by 375 grams of water to raise its temperature by 25° C? Specific…

A: Given, mass = 375 g  Specific heat, c = 4.184 J/g°C  Heat = ?

Q: 8. The heat of neutralization of sulphuric acid by sodium hydroxide is -55.84 kJ/mole of water…

A: Answer is explained below.

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Q: Define the specific heat capacity of water. What units are used for this value? How much heat is…

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Q: The specific heat capacity of liquid mercury is 0.14 J/g-K. How many kilojoules of heat are needed…

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Q: The burning of 1.5 g of vegetable cause the temperature of 58.18 g of water and a soda can…

A: m = 58.18 g C = 4.18 J/g. 0C. Ti = 21.5 0C Tf = 28.1 0C