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A 15000 gram ball of lead is cooled to 22.5 degree celsius by losing 478 calories of heat. What was the initial temperature?
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∙ 14y ago
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∙ 14y ago
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When water at 4 degrees Celsius is cooled it does it contract?
No. When water is cooled it contracts up to 4 degrees Celsius and then it begins to expand till 0 degrees Celsius. This is called the anomalous expansion of water.
What 5 things expand when cooled?
water True, but only in the range 4 degrees Celsius to zero Celsius.
How does nitrogen change into liquid nitrogen?
It has to be cooled to below -196 degrees Celsius or -321 degrees Fahrenheit.
What is the mass in grams of a piece of copper that released 125 calories when cooled from 100 degrees Celsius to 25 point 3 degrees Celsius the specific of copper is 00924 cal per g x degrees Celsius?
Q=m s dT m = s dT/Q = 0.00924 X (100-25.3)/125 = 0.0055122 g
How much energy is released when a substance is cooled to its original temperature?
It depends on it's original temperature and how much it was heated.
What will happen as the temperature is gradually cooled at 10 degrees celsius?
It will gradually drop to below 10 degrees.
Do any matter expand when cooled and contract when heated?
Sort of. In the temperature range of 0-4 Degrees Celsius water contracts when heated and expands when cooled. Outside of this temperature range it behaves normally.
How do you measure cooled temperature?
Cooled temperatures are still temperatures!. You can measure them using expansion thermometers down to around -15 deg Celsius. Below that you will probably need a thermocouple.
A sample of Xenon gas at 20degree Celsius and 0.570 ATM is cooled to a pressure of 0.100 ATM If the volume remains constant What is the final Celsius temperature?
It would be -221.7 deg C.
What is the polymer processing temperature of Polyethylene?
Polythene takes its temperature from its surrounds, as do all substances unless specifically heated or cooled.
Which element will condense when cooled at room temperature from 100 Celsius?
Hydrogen, helium, nitrogen, oxygen, fluorine, neon, chlorine, argon, bromine, krypton, xenon and radon are all gases at 100 deg C. Only Bromine will condense if cooled to room temperature.
When water at 4 degrees Celsius is cooled it does it contract?
No. When water is cooled it contracts up to 4 degrees Celsius and then it begins to expand till 0 degrees Celsius. This is called the anomalous expansion of water.
Does water expand when it's cooled?
It does except when the temperature is close to 4 Celsius degrees. At this temperature water actually expends a little bit. But when you move further from 4 degrees towards negative temperatures it starts to shrink again as does when it comes from higher temperatures to 4 Celsius.
How to convert gaseous carbon dioxide to solid carbon dioxide?
The same as most substances, CO2 must be cooled and put under increased pressure to become a solid. At one atmosphere, CO2 must be cooled to a temperature of -78.5 degrees Celsius to solidify. At height pressures CO2 solidifies at higher temperatures, however solid CO2 never exists at a temperature above -56.4 degrees Celsius.
500cm3 of ideal gas at 40 degrees Celsius and 200kpa absolute is compressed to 250cm3 and cooled to 20 degrees Celsius.What is the final absolute pressure?
Assuming the amount of gas remains constant, we can use the ideal gas law to calculate the final absolute pressure. The initial pressure (P1) is 200 kPa and the final volume (V2) is 250 cm3. The initial temperature (T1) is 40 degrees Celsius or 313.15 Kelvin, and the final temperature (T2) is 20 degrees Celsius or 293.15 Kelvin. Using the equation (P1 * V1) / T1 = (P2 * V2) / T2, we can solve for the final absolute pressure (P2), which is approximately 400 kPa.
Does water contract or expand when it is cooled?
When liquid water is cooled, it contracts like one would expect until a temperature of approximately 4 degrees Celsius is reached. After that, it expands slightly until it reaches the freezing point, and then when it freezes it expands by approximately 9%
When water at 4 deg Celsius taken in a glass is cooled to 1 deg Celsius what will be level of water?
increases
