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How many joules of heat are needed to change the temp of 40 g of water?
167.2J if it doesn't have to do with phase changes.
Why you should not hold the thermometer by its bulb?
the bulb can feel heat, so holding it by the bulb can raise your temp. hope i helped! :)
Does density affect water temp?
yes it does...but to b more specific, ask the question the other way around "does water temp affect density?"....ABSOLUTELY
What quantities do you need to know in order to determine the amount of heat released by the lead sinker in cooling to the final temperature?
mass of water, initial temp of the water, final temp of water after the hot sinker is put into the water, the temp of the hot sinker (if it is heated in separate boiling water, the temperature of the water) and the specific heat of water ( 1 cal/g degree C)
What kind of instrument is used to measure water temp?
thermometer
How many btu's in office water-cooler?
There are no BTUs in an office water-cooler. But you can calculate how many BTUs are removed by the cooler. One BTU or British Thermal Unit is the amount of heat energy required to raise the temperature of one pound of water one degree Fahrenheit. There for when you remove one BTU you are lowering one pound of water one degree Fahrenheit. So if you know how many pounds of water you have and the temperature of the water you start with and the temperature of the water comming out of the cooler you can calculate how many BTUs the cooling unit of the water cooler has removed. BTU=Temp1 - Temp 2 X LB water
BTUs to melt one pound of ice?
From high school science class; it takes 144 BTUs to melt a pound of ice. That takes it to 32 degrees F. To then raise the temp to 72 deg., would take about 40 more BTUs.
What is 650 degrees in BTUs?
One measure does not directly translate to another. A BTU is the amount of heat that it takes to raise the temp of one pound of water by one degree F. A burning match, and a burning fireplace may both be at 650 degrees, but the fireplace gives off more heat (more BTUs)
How many Cubic feet of gas to raise water temp 50 degrees?
How much water? What is the gas used?
How many joules of heat are needed to raise the temp of 2.83 kg of water from 38C to 46C?
0.0796
How many calories are needed to raise the temp of 8.1 g of water 20 degrees Celsius?
there are no calories in water you idiot
How many BTUs does it take to heat 390 gallon tank of water from 60 degrees to 248 degrees?
The specific heat of water is 1 BTU per pound per degree Fahrenheit. There are 8.3378 lbs/gallon at 60 degrees, which equals 3251.742 pounds of water. The number of BTUs to raise it 188 degrees is then 611,327.496 BTUs.
Which liquid would be most difficult to raise or lower the temp of?
Water.
Water has a temp of 4.184 and copper has a temp of 0.387. Does it takes more heat to raise the temp of the copper molecule?
These are not temperature numbers but specific heat numbers. They mean that it takes 4.184 Joules and 0.387 Joules respectively to raise water and copper of one gram by one degree celsius. So, as you can see, it takes a lot more heat to raise the temperature of water than it does of copper. Water has a very high specific heat.
What is energy used to raise the temp of water by 1 Celsius called?
1 calorie. (To raise it from 14.5 to 15.5 degree celsius to be exact.)
What is the calorie?
amnt. of energy required to raise the temp. of one gram of water by 1 degree celsius
How are 25000 calories of heat were used to raise rhe temperature of 400g of water to 82.5C what was the initial temp of the water?
Normally, ambient.
