K or C [ENDORSED]
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K or C
When do we use Kelvin, and when do we use Celsius in enthalpy calculaions? So far I've noticed that it's mostly Celsius, but it's been a little confusing for me since we've been taught to convert most temperatures to Kelvin.
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Re: K or C
Hi! I believe that when using an equation such as , either Kelvin or Celsius may be used, as a measure of difference in temperature in Kelvin or Celsius is the same, as the two units are scaled to one another (K = C + 273). In other problems, where only T appears, I think you have to consider other units present in order to obtain correct units for the final answer by way of canceling out. I hope this is helpful!
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Re: K or C [ENDORSED]
You would have to pay attention to the units in the problem. For example, specific heat (c) can be given in J/(kg*K) or J/(kg*C). Based on the units given, you should use the appropriate value for them to cancel.
Although, I do agree with the previous answer that when calculating change the change in temperature for K and C will be the same number/magnitude.
Although, I do agree with the previous answer that when calculating change the change in temperature for K and C will be the same number/magnitude.
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Re: K or C
Hello!
For equations that use the change in temperature (∆T), you can use either ˚C or Kelvin, because the difference in temperature is the same (1˚C and 1 K would both represent the same temperature interval). However, if only T is involved, you would have to look at the units in the problem to determine which to use.
For equations that use the change in temperature (∆T), you can use either ˚C or Kelvin, because the difference in temperature is the same (1˚C and 1 K would both represent the same temperature interval). However, if only T is involved, you would have to look at the units in the problem to determine which to use.
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Re: K or C
Hello,
You can differentiate between Celsius and Kelvin based on the units and equation in question. When you see an equations with a change in temperature you can use either C or K, because they represent the same differences in temperatures. If you are looking at a problem where the change in temperature is not present then you must look at the units of the other values in the problem to decide between C and K.
You can differentiate between Celsius and Kelvin based on the units and equation in question. When you see an equations with a change in temperature you can use either C or K, because they represent the same differences in temperatures. If you are looking at a problem where the change in temperature is not present then you must look at the units of the other values in the problem to decide between C and K.
Re: K or C
Hi,
Most equations seem to use K, however, I would look at the units for the equations (especially those of the constants being used).
Most equations seem to use K, however, I would look at the units for the equations (especially those of the constants being used).
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