This is the density of a substance compared to the density of water.
Githiari answered the question on October 12, 2017 at 13:48
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The mass of an empty density bottle is 20 g. Its mass when filled with water is 40.0 g and 50.0 g when filled with liquid X. Calculate the density of liquid X if the density of water is 1,000 kgm^-3
Date posted: October 12, 2017. Answers (1)
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Date posted: October 12, 2017. Answers (1)
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a. 3:2 or 5:4
b. 3:4 or 5:7
(Solved)
1. Which is greater
a. 3:2 or 5:4
b. 3:4 or 5:7
Date posted: October 12, 2017. Answers (1)
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Date posted: October 11, 2017. Answers (1)
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Date posted: October 11, 2017. Answers (1)
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Date posted: October 11, 2017. Answers (1)
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Date posted: October 11, 2017. Answers (1)
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Date posted: October 11, 2017. Answers (1)
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A heater rated 3.5 kw is used to raise the temperature of 5 kg of water through 70⁰ C. Calculate the time required. (specific heat capacity of water is 4200 J/kg K). Give your answer in minutes.
Date posted: October 11, 2017. Answers (1)
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An immersion heater rated 900 w is placed in a liquid of mass 4 kg. It was switched on for 20 minutes and the temperature of the liquid raised from 25°C to 35°C. Determine the specific heat capacity of the liquid
Date posted: October 11, 2017. Answers (1)
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A alloy of copper mass 4 kg and specific heat capacity 400 J/kg K initially at 91⁰ is immersed in water at 20⁰ C. if the final temperature is 21⁰C, determine the mass of water.(the specific heat capacity of water is 4200 J/kg K). give your answer to one decimal place.
Date posted: October 11, 2017. Answers (1)
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Some water of mass 4 kg, at a temperature of 100⁰ is allowed to cool for 20 minutes. State the factors that determine its final temperature.
Date posted: October 11, 2017. Answers (1)
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Date posted: October 11, 2017. Answers (1)
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Ice change to water at 0⁰ C. 5 kg of ice and 5 kg of water at 0⁰ were heated separately. Give a reason why more heat energy is required to heat ice.
Date posted: October 11, 2017. Answers (1)
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A boy took 10 kg of water and raised its temperature to 90⁰ C. He add m2 kg of water at 20⁰ C and the mixture attained a temperature of 50⁰ C. Determine the value of m2. (Assume the containers did not get heated. Specific heat capacity of water = 4200Jkg^-1k^-1)
Date posted: October 11, 2017. Answers (1)
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Date posted: October 10, 2017. Answers (1)
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Date posted: October 10, 2017. Answers (1)
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A sample of water was found to boil above 1000 C. State two factors that could have led this observation.
Date posted: October 10, 2017. Answers (1)
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Date posted: October 10, 2017. Answers (1)
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Date posted: October 10, 2017. Answers (1)