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Temperature
This category is for questions about the various units and conversions of temperature, as well as the freezing point and boiling point of elements and compounds.
19,212 Questions
Ice at 0 degree celsius is more effective in cooling than water at 0 degree celsius?
In theory, the effectiveness of the cooling process depends on the ability/capacity of the cooling element (in this case, water and ice) to absorb energy from the system, until the system goes to equilibrium.
Ice is more effective than water in cooling liquids because ice needs additional energy to convert itself to water at 0ºC. Thus, it absorbs more heat from the liquid system it is in, making the liquid system cooler. In other words, ice at 0ºC is simply a "level" higher than water at 0ºC. The additional energy requirement is called "enthalpy of fusion.
Simple mathematical illustration:
X = Y + c
where:
X = energy that ice at 0ºC can absorb until equilibrium
Y = energy that water at 0ºC can absorb until equilibrium
c = constant (enthalpy of fusion)
Step by step mechanism is:
1. Ice at negative degrees Celsius absorbs energy to make the ice temperature 0ºC
2. Ice at 0ºC abosrbs energy to convert the ice to water (still at 0ºC)
3. Water at 0ºC absorbs energy until the system reaches equilibrium
Ice at 0ºC starts on step 2 while water at 0ºC starts on step 3.. Hope it can be of help..
Ice at 0 degrees celsius is more effective in cooling than water at 0 degree celsius?
Ice can absorb more heat when melting into water at 0 degrees Celsius compared to water at the same temperature, making it more effective at cooling. This is because the process of melting ice involves absorbing additional heat energy from the surroundings to break the bonds between ice molecules into liquid water molecules.
65 degrees Celsius - you'd be dead
65 degrees Fahrenheit - pretty warm
How mant degrees celsius equals 85 degrees Fahrenheit?
85 degrees Fahrenheit is equal to 29.4 degrees Celsius.
800 degrees Fahrenheit is equal to 426.67 degrees Celsius.
What is the temperature at the North Pole in Fahrenheit and Kelvin if it is -40 C?
If the temperature at the North Pole is -40°C, it is also -40°F. To convert Celsius to Kelvin, you would add 273.15 to the Celsius temperature, so in this case, it would be 233.15 Kelvin.
If a thermometer reads 73 degrees Fahrenheit what is it in celsius?
Start by subtracting 32 from 73 .Then multiply the answer with 5 and divide by 9.
In this case the answer is 22.7 degree celsius .
What is thirty-two degrees Celsius converted into Fahrenheit?
Start by multiplying 32 with 9 and divide by 5. Then add 32 to the answer.
In this case the answer is 89.6 degree Fahrenheit .
What is the temperature at Uranus' high and low temperature in kelvins Fahrenheit and Celsius?
The high temperature at Uranus is around 58 K (-356°F, -216°C) and the low temperature is about 49 K (-370°F, -224°C). Uranus is the coldest planet in our solar system, with temperatures dropping significantly due to its distance from the Sun and lack of internal heat source.
If the gas is in a rigid container, its volume cannot change. According to the ideal gas law, PV = nRT, pressure is directly proportional to temperature, so if the temperature increases from 300 K to 400 K, the pressure of the gas will also increase.
A mild or moderate fever is an adaptive response that seems to benefit the body. Bacteria need large amounts of zinc and iron to multiply. During fever, the liver and spleen sequester iron and zinc that bacteria need to multiply.
What becomes solid above the melting point?
assuming it is its own melting point NOTHING which is why its a MELTING point
Yes, the fact that the boiling point remained constant during the entire boiling process suggests that the liquid is a pure substance. Additionally, the reduction in volume without a change in boiling point further supports this conclusion.
Multiplying: (spec.heat J.kg-1.K-1)*(masskg)*(temp.difference K or oC)= Heat needed (J)
128 (J.kg-1.K-1) * 500 (kg) * 50 (K) = 3.2*106 J = 3200 kJ
Special Notes:
J is Joule, SI unit for energy !!
Temp. difference in Kelvin (K) = same in degree Celsius (oC)
Spec. heat of Lead is 128 (J.kg-1.oC-1), not 750 !!
but of Potassium 750 (J.kg-1.oC-1)
What is negative 22 degrees Fahrenheit in Celsius?
Negative 22 degrees Fahrenheit is approximately -30 degrees Celsius. To convert Fahrenheit to Celsius, you can use the formula: (Fahrenheit - 32) x 5/9.
What is the recorded high temperature for Salinas California?
The recorded high temperature for Salinas, California, is 106°F (41°C), which occurred on several different dates in the past.
What temperature is 25 degrees Celsius in Fahrenheit?
Start by taking the number in Celsius and multiply it by 9. Then divide that number by 5, and then add 32. This is how you convert Celsius to Fahrenheit or use the equation F = (9/5)C + 32
In this case, the answer is about 77 degrees Fahrenheit.
-25 degrees Celsius equals how many degrees in Fahrenheit?
F = 9/5(C) +32
F = 9/5(25) +32
F = 77 degrees fahrenheit
you may try the online converter linked below next time
Which is cooler 104 degrees Fahrenheit or 60 degrees Fahrenheit?
"Cooler" is a subjective term, but traditionally speaking, 60 degrees Fahrenheit would be considered cooler than 104 degrees Fahrenheit.
Which is cooler 26 degrees Celsius or 60 degrees Fahrenheit?
26 degrees Celsius is cooler than 60 degrees Fahrenheit. This is because 26 degrees Celsius is equivalent to about 79 degrees Fahrenheit.
What is the Fahrenheit equivalent to 854 kelvin?
The Fahrenheit equivalent to 854 Kelvin is approximately 1096.73 degrees Fahrenheit. The conversion formula is °F = (K - 273.15) × 1.8 + 32.
How much heat is needed to raise 8 kg of water from 4 degress celsius to 83 degrees celsius?
The amount of heat needed to raise the temperature of a substance can be calculated using the formula Q = mcΔT, where Q is the heat energy, m is the mass, c is the specific heat capacity of water (4.18 J/g°C), and ΔT is the temperature change. Plugging in the values, we get Q = 8 kg * 4186 J/kg°C * (83°C - 4°C) = 2,309,056 Joules. Therefore, 2,309,056 Joules of heat energy is needed to raise 8 kg of water from 4°C to 83°C.
